We can criticize the delivery.. but given the popularity of the thread, I think the OP is making a valid point. I have written location-aware iPhone native app

We can criticize the delivery.. but given the popularity of the thread, I think the OP is making a valid point. I have written location-aware iPhone native apps, and if I had an open-source alternative to Big5 then, I probably would have used that. In my case it would have saved me quite a lot of overhead in terms of moving from Linux to a full mac development platform. Not having to learn a new syntax and api for iPhone might have been handy... and then I would have avoided having to jump through the code-signing hoops that tend to break when you upgrade software versions. So.. that's quite a bit of overhead for an app which only uses the geo-location feature of the hardware. I do enjoy the Mac platform, XCode etc. I'm not apple bashing here, but making a comparison.