FOSS in the Mobile World
Linux-friendly hardware

I went through this process
I found the E-TEN glofiish devices
They are very similar to Openmoko
Samsung S3C2442 SoC MCP with NAND+SDRAM
TD028TTEC1 full-VGA LCM
Other hardware parts reasonably supported/known
Marvell 8686/libertas WiFi (SPI attached)
SiRF GPS (UART attached)
CSR Bluetooth (UART attached)
Only some unknown parts
CPLD for power management and kbd matrix
Ericsson GSM Modem (AT commandset documented!)
Cameras (I don't really care)