Interestingly, the source for the original article included warnings about Apple's App Store as well. For example, the researchers pointed out that :
A higher percentage of iPhone apps (14% iPhone vs. 8% Android apps)
access people's Contacts information.
Are a lot of apps (for either OS) selling our info to make up for not making money in a crowded app market? Who knows.
What would be useful is if all phones had a user accessible log of client-initiated communications, and personal info accesses.