I just returned one before my 30 days went past. It seemed too limited if the company failed and I was afraid I would not get my rebate.
I don't have much to add since I could not disassemble it (the back is stapled into place and I didn't want to damage it) but I did notice that the phone jack actually had 6 "pins", not your typical 4. No idea how these trace out, but possibly there direct serial communication on the extra pins. Phone only needs 2, right?
Otherwise I search the net for any type of hack info and came up blank. I don't think much is known about these and $200 was too much for an experiment for me. $99 (excluding a rebate) might have got me though!
