They are back in stock again and this might be the last of the rev B models. Rev C comes out in early May and is expected to cost about $10 more with 4G eMMC. You do not need a rev C for Allstar but after Rev B runs out that will be your only choice.

BeagleBone Black
 
Link: http://www.adafruit.com/products/1278       

Get the 9.95 black case also and power supply if you don't have one.

73 Doug
WA3DSP
http://www.crompton.com/hamradio