Works on mine as well -- on wifi. But not in many places. I live in a rural area, and it works fine here, but oddly enough not at either of my work places, which are in much larger cities. Don't get it.
Works on my Verizon Tab but I won't use it past the 30 trail....Would love to keep it if it was free. Oh well looks like I'll have to wait for gingerbread SIP so I can use Google voice.