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PS: there is a related thread over at the SublimeText forum's too, I don't know which site is monitored more, but here is the link back

I know lots of folks have mentioned SubEthaEdit by the Coding Monkeys, but I don't think anyone has posted this link:  

They have actually licensed their protocol / engine to the Coda folks.  I don't know any details of their arrangement with the folks at Panic, but this shows that its available for licensing.  Jon, please at least send them an email and ask them about it!  Thanks!  Keep up the good work!