One of the only ways to enable GPS before this was to replace Midinux, the native operating system, with Windows XP. And last I heard, the complete set of XP drivers that should’ve been released in October still isn’t ready/available yet. So for months, Aigo MID owners/hackers have had to choose between GPS or WiFi (one of the missing XP drivers); considering that "mobile internet" is the primary feature of a Mobile Internet Device, the decision probably wasn’t a difficult one. Those content to stick with Midinux, on the other hand, didn’t even have a choice. GPS simply didn’t work.
But it does now. Or it should, anyway. I don’t have a Midinux MID on hand to test it myself, but dmarschal in the Pocketables Forum is checking it out and says that it looks promising so far.