Yes, it is pointless, but fun(ish)
However, why oh why doesn't it also chime the quarters (like the real one). It is annoying to have to wait for the full hour to hear the bells' dulcet tones.
Big Ben celebrates its 150th anniversary this year, and you can now equip your iPhone or iPod touch with a free clock app in commemoration of the big fella's sesquicentennial. Unfortunately, Big Ben (iTunes link) the iPhone app is decidedly less impressive than Big Ben, the Great Bell in the Great Clock in the equally great …
Ah... but how many iPhone users can actually read an anologue clock face? i remember some survery recently and huge swathes of hip & happening, 'with it kids who know where it's at, hadn't a clue. They can only read digital clocks, and even then there were a few with problems working with a number system that goes to 60 (i.e, They would calculate that 3:20 was 80 minutes later than 2:40), so what chance to iPhone users have?
I'm fine with analogue clocks in general, although my current one is a rather nice fossil one where only 9 and 3 are marked on the face, and it's quite an elongated rectangle (the 9-3 axis is longer than the 12-6 axis) so things can get a bit tricky around the 5 to, 5 past, 25 past and 25 to points - I'm never quite sure where it is! Sober I can cope but I'm screwed at the tail end of a heavy night - I just get my phone out of my pocket!!