When Apple launched the original iPhone, the community was not very large. The 3G and now the 3GS have changed that situation, as more and more phones are sold, especially since the 3G internet is much more useable than the rather slow GPRS or EDGE of the 2G. However, the community does not only inhabit normal users, but also some hackers. A pair of researchers at the Black Hat Security Conference demonstrated how the iPhone can be hacked via SMS, caused by a serious memory corruption bug in the way that SMS are handled. Surprisingly, Apple hasn't done anything against this bug although the company was notified about it six weeks ago.
Not only Apple iPhones, but also Google Android based phones and parts of the Windows Mobile interface code for HTC phones have been exploited. These phones, however, were only rendered useless by the hack, whereas the hacker could take full control of the iPhone. The two lads that found this bug, Collin Mulliner and Charlie Miller, had also found a hole in the mobile version of Apple's browser Safari back in 2007 when it was first launched.