Teacube for two?
Found on Gizmodo – the Teacube
The Teacube uses a NEC MIPS processor (the VR5701) as the CPU, and sports 64 meg of RAM and 16meg of flash memory. It has 2 USB ports, 2 serial ports, a CF card slot, 100megabit network, monitor connector, an 'eTron' card slot (a what?), and microphone and headphone jacks. It's capable of running at 1024 x 768 in 65,536 colours. Not bad for a box measuring 52x52x45mm (almost a 2" cube).
Custom operating system installed, based on the T-Kernel, and includes a bunch of standard applications.
It's not really a handheld, but it is small enough to fit in your hand.
