How to Build a Selfmade Mobile (Cellular) Phone

Do-it-Yourself Cell Phone	How to make a homebrew mobile phone.
TuxPhone	Some notes and schematics about a DIY mobile phone based on Linux.
Open Phone	The article is a little less of a how-to and a little more of a justification for why individuals should start building their own mobile phones, network operators should start supporting them, and handset manufacturers should start funding user groups.