Hard to say why Google chose to roll its Movies app out first to 3G-packed tablets sporting Android 3.1 (a smaller testbed, perhaps?), but it looks as if it won't matter for much longer. We've received a number of tips this evening suggesting that Google Movies can now be downloaded from the Android Market by WiFi-only Xoom tablets, though some are seeing a litany of server errors when trying to actually use the service. That said, we didn't see any issues here at Engadget HQ, so it's possible that a few kinks are still being worked out on select servers. Give it a whirl and let us know how it turns out in comments below, an