The presentation today indicated that there was support on Stackoverflow but I was wondering if there's a central location where all requests are being tracked for us to follow and vote on?
If you have a very specific request for the Glass Development Kit, the best place to file it is in the Glass API issue tracker. There's a Component-GDK tag being used for these requests.
In general, though, not much has been said about the GDK yet, so it may be a bit early to make specific issue requests until more context is available.
For now, if you're a member of the Explorer Program, the Glass Pioneers section of the Glass Community is a great place to discuss your thoughts on the GDK.