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
+44-(0)-7971-781422

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