10 mind-boggling iPhone and iPad apps The weird and wonderful world of iOS apps By Rob Mead Who needs a real girlfriend when you can have Pocket Girl instead? For every jaw-dropping, must-have app for iPad and iPhone there are dozens more that are mad, bad or just plain wrong. We’ve rounded up just 10 of our favourites. We’re sure you can find many more. 1. Sexy Piano – £0.59…