Ok, hoping you can help with this one.

I use the Twitter for iPhone app on my iPhone4 (I know, get me, eh!). Recently, whenever I tap on a YouTube link within a tweet the Twitter for iPhone app takes me to the full website version of YouTube instead of the mobile version. A friend of mine uses the same phone and Twitter for iPhone app and he always ends up at the mobile version of You Tube.

The problem is of course that the full website version of You Tube uses Flash which is pointless for iPhones

Any help gratefully appreciated.