Except for the XOOM, all of the tablets I know of are fairly low volume, especially if you cover the sound ports with a leather tablet cover. The best thing I know of for this problem is to plug in external speakers.This works beautifully.Hi, got a C91. Downgraded it to GB cuz wanna netflix to work. So far i love it. The only think i dont like is low volum and mic is not sensitve enouh.
I've used GrooVe IP Lite (too slow), Google Voice, and Dolphin Sonar. All of which seem to work well with the mic.