Well, I just found this beast accidentally, and it looks much more attractive to plug.
http://www.filesaveas.com/joggler.htmlhttp://en.wikipedia.org/wiki/O2_Joggler * an Atom Z520 processor (1.33 GHz with 512KB L2 cache),
* a single-touch capacitive 800x480 touchscreen,
* Wi-Fi (802.11b/g/n) which is actually an internally housed USB adapter
* 10/100/1000 Ethernet Cable
* a USB 2.0 host port
* 512 MB RAM
* 1GB flash (partitioned: 64Mb boot, 256Mb OS, 256 OS copy (for factory 'resetting), 450Mb for general storage)
* internal speaker with 3.5mm stereo jack socket
* a metal stand which doubles up as the CPU heat sink, so it cannot be removed
* 4000mA, 5V DC input jack (adaptor supplied)
I'm living in China, it cost me less than 100$, and it's not a dev kit, but a full commercial product, and also hackable. Some people even install windows on it.