The Federal Trade Commission is going to investigate Apple for anti-competitive practices because it's shut Adobe Flash out its mobile ecosystem and is now trying to keep Google ads off of IPad and iPhone applications.

Bloomberg says the Justice Department and the FTC have been debating which one should take the case for weeks.

Apparently the FTC won the coin toss though the DOJ is already investigating Apple and other Silicon Valley types over a possible illegal agreement not to poach each others' employees. The Wall Street Journal says the DOJ has also started looking at Apple's practices in its dominant music business.

The regulators are reportedly responding to complaints from the shut-outs.

The FTC only approved Google's $750 million acquisition of AdMob last month because Apple was going to participate in the mobile ad market and it wanted to slow Apple down.

The investigation may have something to do with the fact that Apple has changed its rules for developers again and now says they can "use embedded interpreted code in a limited way if such use is solely for providing minor features or functionality that are consistent with the intended and advertised purpose of the application." Otherwise, they're limited to "code that is interpreted and run by Apple's documented APIs and built-in interpreter(s)."

By the way, according to CNET, Google is supposed to wade into the music biz this fall, offering downloads and streaming tied to Google search results and letting users store tunes and videos in the cloud.