I’m just gonna be blunt and say it out loud: It looks like a website that was made by a developer or by an open source community.
Given that most (if not all) of us are programmers, not designers, including yourself. I would highly recommend hiring a professional design/marketing studio to handle the marketing side of your product. It has already gathered quite an attention among the “hackers” community and, not knowing any of the financials, I am pretty sure 100+ people already bought a license for the program.
However, there is still a huge market of “other people” who don’t read forums and/or HN who would be interested in this application. Having a slick website on top of a slick editor to promote to news sites and/or aggregators will surely help reaching this audience.
So given that statistic, plus the fantastic features of Sublime, I think it would be well worth the investment.
Look at these application sites for example:
macrabbit.com/espresso/
macpaw.com/gemini
panic.com/coda/
versionsapp.com/
marketcircle.com/billings/
pixelmator.com/
realmacsoftware.com/courier/
silverbackapp.com/
alfredapp.com/
Now granted, one thing these all have in common: they are websites for Mac applications, but that has been a common theme in the past several years anyway, promotion and design of Mac apps has always set the bar for other platforms. But I see no reason why a cross-platform application as yours can’t have the same slick website as well.
Again, it’s gonna cost you, but if you do the math, there is a good chance the costs will pay themselves back, if not in direct sales from the marketing then at least in indirect sales from the time you buy yourself to build more awesome features for the editor.
Oh and while you’re at it, please change the final name of the application, “Sublime Text 2” just doesn’t sit right with me
But in the end, it’s your application, you decide what to do, and whatever website you use and whatever name the application has, I already bought my license anyway, and will buy it again whatever way I can (Mac App Store?).