The Acer Iconia Tab A501 is the Acer Iconia Tab A500 with 4G and a no-commitment price of $480 (16GB) and $550 (32GB); about $100 or so more than the A500.
For the price of a two-year contract, AT&T offers the tablet for $350; the lowest initial cost of any 4G Honeycomb tablet yet. If two-year contracts for tablets scare you (and they should), AT&T also offers session plans at $15/250MB and $25/2GB, if you absolutely need that "anywhere" access. But, with its hefty build and Acer's strange decision to ship it with Android 3.0.1, instead of a later version of the OS, is the A501 already too far behind to even enter the race?