Well i did and i came up with this, a ligher to usb adapter. It only just fills the lighter socket so you can shut the lid no probs and it can charge anything that has a usb conection - awsome!
this is the one i got
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=200387284419&ssPageName=STRK:MEWNX:IT


this is the one i got
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=200387284419&ssPageName=STRK:MEWNX:IT