I was wondering if the tablets can be used as bluetooth speakers, where I could plug in standard headphones into the tablet and hear audio from a desktop computer (running Vista) though bluetooth? This is similar to the function of the Sony DRC-BT15 bluetooth adapter.

Alternately, can the microphone on the tablets be used over bluetooth to make voice calls, control speech recognition, etc. on desktop computers?

I did a search and found *many* threads on this topic (here here here here here and here) but all the threads seem to be inconclusive. Some of the threads specifically mention the n800/n810, but all seem related.