Here is a press release from last week that I thought was very worth putting on my blog. In spring 2012 (no exact date yet) ALK Tech will be releasing a free version of their copilot app, which seems to include built in maps, if you read below. Of course, if you want more features, you can upgrade via in app purchase. I use Copilot now and am very happy with it. This will also be available for Android (I use that version too)
I think the big deal of this is the free offline on board map.
IMMEDIATE RELEASE