Waiting to see when BBM will actually launch on other mobile platforms? According to a tweet from BlackBerry Senior Strategic Account Manager Alex Kinsella, the timing may be in Apple's hands. Stating "BBM for iPhone was submitted for review 2 wks ago #waiting", this might shift blame for any perceived delay -- summer ends September 21st in the northern hemisphere -- from Waterloo to Cupertino. It's a reminder of rumors that surfaced before Google launched its standalone Maps app on iOS, but unfortunately doesn't give us a firm date on when to expect the app. Still, with recent accidental leaks and video previews of the Android version, it shouldn't be much longer.