Here's a little something that's been bugging me recently. It's a tiny little usability thing which would be *really easy* to fix: entering mobile phone numbers.

Phone number formats Bango mobile usability

I've found a few times recently that some sites (whether on mobile or web) insist that I enter my phone number in "international format". Why is this? It's not difficult to convert numbers from formats like

07971 781422
(07971) 781422

into the One True International Representation of 447971781422, but these sites expect me to do it myself, and to bother with it.