One of the biggest mistakes I made on my last Tablet PC purchase was not getting integrated Bluetooth. Hopefully, you didn’t make the same mistake and you can take advantage of Bluetake’s BT500+ Bluetooth mouse. Based on a side-by-side pic of the BT500+ and the iPod nano, it’s not the smallest wireless mouse, but it’s definitely travel worthy. 800 dpi resolution is plenty good enough and Bluetake includes two rechargeable 700mA "AAA" Ni-MH batteries for juice. The nicest touch is the USB charging cable to recharge the batts when connected to a notebook or UMPC. The BT500+ works on both Windows and Mac but there’s no mention of price on the Bluetake product page.