After months of complaints since the launch of the iPhone, Apple just announced the a Software Developer’s Kit will be released in February. Mac Rumors noted that the letter from Jobs suggested that they might use a digital signature to control who can develope applications, a strategy the Nokia is using.
For this reason, and the iPhone’s relatively small user base, I’m not sure that we’ll see the applications on the scale of Facebook. However, I’m looking forward to what software developers can come up with.
That being said, iPhone apps might be more profitable, because people are getting more used to downloading and paying for apps and content to mobile phones.
A recent Telephia report on mobile applications, found that in Q2 2007, 5% or 13 million mobile users downloaded a mobile app, which generated $USD 118 million. Compare that with Business Week reporting the estimate that the entire monthly Facebook revenue from widget advertising is less than $USD 1 million, or $USD4 million for the quarter.