The iPhone is a phenomenon - many people have one, many people want to have one, some want to get rid of theirs again, and some are now warning that the iPhone can even be used to go phishing.
The Safari and Mail applications on the prestigious object reportedly puts users at a risk. By the relatively old-fashioned trick of spoofing an URL, phishers are able to redirect users to websites that are not what they pretend to be.
Interesting, as Mac OSX is very immune against most attacks. But luckily there is good (and general) advice available: iPhone users should enter the addresses of sites they wish to visit manually instead of clicking on links contained in email. Until there is an official patch from Apple to fix this problem. And maybe also after the patch is available.