99cbe960_ackBerry_PlayBook_Tablet___2_1__Guideline
[Characteristic] Wireless network connections [Guideline] 
Try to simplify how your application creates network connections. Compared with standard LANs, longer latency periods that are inherent in some wireless network connections can influence how quickly users receive information that is sent over the network.
Constraints of designing for mobile devices - Link - Find the latest UI Guidelines for the BlackBerry PlayBook Tablet - 2.1