put color aside, which module is preferred? POGO-P21 or POGO-B01?
Both are the same, just different color. However, chances are good that they'll send you a POGO-E02 like all the previous deals
Its very unlikely that you'll receieve a POGO-P21/B01. I've seen one of two users complain that they actually wanted the POFO-P21/B01 which has a internal SATA port (minor hacking required to get to it). However, in my opinion the E02 model is ideal since it has more memory and a faster CPU.