Is it possible that Sublime provides a built-in diff functionality like vimdiff, which takes 2 files, open in a two-column layout, and gives a side-by-side diff view(not the .diff output)

And indicate if file contents have changed on disk

A better looking find in files results like AckMate Plugin for Textmate (https://github.com/protocool/AckMate) does. Current search results are shown in a bit confusing way.

add a class browser that read classes and functions where I can just click the function to navigate to it directly

I would really like to be able to make some things bold or italic.

We have already discussed that on the forum at :
http://www.sublimetext.com/forum/viewtopic.php?f=4&t=147

Feedback in the title or status bar that shows what the active project is

Make it possible to view file encoding and convert it.  ANSI, UTF-8, UTF-8 without BOM etc. 

Option to change which side of the screen the minimap is on

When recording a macro it would help if it also recorded F3 (finds).  I frequently need to find a token (like and underscore) and delete everything before it.

Support nested syntax highlighting.

Sublime Text 2 understands syntax in a manner that should make nested syntax highlighting possible.

Within a certain syntax scope, e.g. string.quoted.double.java, support the creation of rules by the user which will cause a syntax-mode switch for the contents of that text's scope.

For example, we might create a rule: when in string.quoted.double.java, if the contained text matches /^SELECT/, apply .SQL syntax highlighting to that text instead.

A set of reasonable default rules could be assembled, e.g. for detecting stringified HTML and SQL in many languages, for Javascript within HTML <script> tags, etc. Allow toggling of these rules with a new View menu item "Nested syntax highlighting".

This could also be used to support per-file syntax highlighting in the find-in-all-files result buffer.

Some additional rule/configuration may be required to handle comprehension of string concatenation which varies by language, e.g. "some" + "thing" and multiline concatenations. Sublime would need to apply a nexted syntax-mode to all the parts of such a string whenever the (whole) string matches a rule.

The rules' criteria should support arbitrary python for cases which don't match a regex well; that code should be able to examine the parent scopes' text to make its assessment (e.g. examining a string variable's declared name in one's code to determine the string's syntax).
 
In a given file the user should be able to arbitrarily change the syntax-mode of any individual syntax-scope in any buffer, through the right click context menu or other method.

Make the default result list in Goto File/Anything (before you have typed anything) ordered by when you last opened the file, so that the previous file you worked on is at the top, the file you opened before that second etc. This would make keyboard based file navigation much more efficient, imho.

Syncing settings files and plugins list with Gist

This feature will provide possibility to sync your settings' files and plugins-list.

I propose to use Gist to synchronize all the stuff.

http://dabblet.com/ give me a cue to use Gist to store text blocks for using from different computers.

Sync work is including several steps (method's logic was taken form google chrome sync):

1. You provide your github accounts info (mail and password).
   
2. Sublime Text 2 (ST2) connects to Gist and downloads all settings and full-detailed list of plugins used by you (list of downloaded, installed, enabled, disabled plugins).
   
3. ST2 overrides your current settings (settings used before sync) with settings from Gist, then adds to syncing setting non-conflictable sections of code.
   
4. After applying syncing to your current config settings will be sent to Gist again to sync re-formed settings.
   
5. Syncing list of plugins is similar to syncing settings.
   

Note #1: ST2 should provide github's account data hiding (not posting this section of config) from posting to Gist

Note #2: http://developer.github.com/v3/gists/ Gits api can help to bring this feature to life. 

Public the "Open Files" side bar (Panel) API, so plugins like function list side bar made possible.

This would make it easier to open existing ST2 projects using the Finder.

Is there a way to tell Sublime Text to display all Characters?

In Notepad++, clicking View > Show Symbol > Show All Characters produces the following:

• Spaces are materialized with dots
• TABs are materialized with right arrows
• CR/LFs are displayed with CR/LF icons 
• Probably more cases that I'm not aware of
  

Mandatory screenshot:

Is there a way to replicate this behavior? I am currently working with big painful CSV files (Excel or CSVEasy are not options), and seeing all the characters is invaluable here.

Thanks for your help.

Allow the user to "unbind" a default key binding in the user key bindings file.

Would be awesome to be able to debug PHP code within Sublime Text. xdebug provides breakpoint support. Basically need a way to place breakpoints, highlight the line, etc...

So either built in support for xdebug, or the means for a plugin to respond to placed breakpoints and display debug data.

Currently, one can only expand or collapse a folder by clicking on the arrow to the left of its name. This presents a very small click target. Being able to double-click anywhere on the folder name would be a massive usability improvement for navigating these trees.