In addition to the community.ti.com forums there are other communities out there which discuss TI products, and in particular I wanted to point out the Beagle Board group on google, there is a lot of good discussion here that may be of help to OMAP3 users. There is also an IRC channel at #beagle on irc.freenode.net which has lively real time discussion on the Beagle Board and OMAP3.
The Beagle Board is an ultra-low cost, high performance, low power OMAP3 based platform designed by BeagleBoard.org community members and sold by Digi-Key. It makes a great platform for small projects and is a great low cost ($149!) alternative to the other OMAP3 development boards out there.