[I]t does look like a true, calls-over-WiFi VoIP client for the iPhone could be just around the corner.

In my opinion, this is precisely why Apple is so aggressively guarding the iPod Touch from hackers.

The quality of VoIP and the ubiquity of WiFi in many areas makes this a clear choice. It’s not just about the price difference between the iPhone and iPod Touch (which is likely only a minor consideration if you’re considering one or the other). I can’t imagine anyone who wouldn’t jettison an AT&T relationship (and its associated bill, of course) for a free or dirt cheap VoIP option.

This may relate to VoIP explicitly, but I see it more as a general rule of protecting their interests. In the wake of yesterday’s flurry of applause for Amazon’s new MP3 sales service, I can precisely see where Apple wouldn’t want a native version of Amazon’s Downloader for iPhone or iPod Touch as that would put at risk their most long-awaited feature for any iPod as well as the cash cow that is the home base iTunes Store.

In this respect, I see a certain degree of paranoia coming out of Apple. Maybe it’s a result of dealing with music and movie publishers. (I would also add mobile phone companies to that list.) Whatever the reason is, it’s unbecoming of Apple.

(Via The Unofficial Apple Weblog (TUAW).)