I thought about getting one of those...in its CH Products Multi-Function Panel incarnation, complete with Control Manager support (and thus a ludicrously powerful scripting language). For whatever reason, the DX1 and MFP do not and cannot use the same drivers (probably some sort of Ergodex/CH agreement), but are otherwise pretty much the same hardware, detachable, flexible key placement and all.
$62 for a DX1 is much lower than the typical MFP, though, which I'm pretty sure is closer to $100-150 from what I've seen.
If anyone here has a DX1 or MFP, could you tell us what the keys feel like?
