The beauty of the Homebrew Computer Club, one of the first formal computer clubs in the country, if not the world, was that it kind of broke new ground. The state goal was to bring computing to the masses. The Homebrew Mobile Phone club, however, seems to have missed the boat. Phones are here and locked down tight. I'm sure Verizon et al won't enjoy a bunch of haxors modding their smartphones. If they were tooling around with homemade cellphones back in 1985, then maybe we'd give them some props.
Anyway, if you want to figure out how to upgrade your phone, go to their meeting out in California on May 4.