ARM processor boards

Let's assume my next car computer ("next" being after I actually have one which I don't currently have but am working on see 8track)

where was I

Let's assume it's based on an ARM9 of some kind. Where will that come from?

A Chumby? A BeagleBoard?

Things I'd like it to have

USB - at least 2 ports, one for GPS and one for Lilliput DisplayLink screen 
WiFi
Lots of RAM
Fast CPU
Ability to boot from flash or SD card
Support for a huge SD card or support for a SATA drive 

Candidates, let's be creative here

• Chumby
• BeagleBoard C or XM
• PandaBoard
• Mikrotik RouterBoard
• Gumstix
• GuruPlug

Chumby One

Freescale iMX233 ARM926EJ-S 454MHz

64MBRAM, 1GB SDCARD

320x240x16 TFT with touchscreen

1x2W speakers, headphone jack

microphone

knob on rotary encoder

3 axis-accelerometer

1 USB 2.0 HS port

variable backlight

FM Radio, battery support