Forum roundup: MacNN forum goers today discuss the release of the new iPhone firmware 2.1 upgrade. One forum member contemplates the usefulness of the iPod touch and iPhone in this thread. Paranoia expressed in one story about a perceived security flaw in the iPhone is debated in the thread titled "your iPhone is watching you". Members discuss the Genius feature in iTunes 8 in response to a question posed about blocking data sharing. One Dedicated MacNNer is having problems with OS X frequently freezing and finds some tips and advice in this thread.