I have an accu chek mobile which I use when out and like others have said find that although it is bigger than other meters its convenient having meter/strip/lancer all in one. I actually picked up a spare one yesterday including 50 test cartridge from accu chek stall at an event
Although I do really like the mobile I am looking at smaller meters and have ordered a contour next usb and also yesterday picked up a agamatrix wavesense jazz wireless which is tiny and looking forward to trying out. If anyone else got one interested to know what you think of it.
I don't get through many batteries in my mobile. Gets used everyday and think have changed batteries twice in about a year. My understanding is they can't send batteries through post anymore but if you contact accu chek they will send you a voucher instead.