Filed under: HandheldsHeads-up kiddos! LeapFrog is out to swipe even more of that allowance with a pair of all new web-connected handhelds. Up first is the Leapster2, which now boasts a sleeker form factor and the ability to upload your totally sweet results to the web for mum and dad to ooh and ahh over. For you older tykes, the Didj handheld -- which is hailed as the first completely customizable educational gaming platform -- enables users to "personalize the look and feel of the games, from designing their avatars to choosing background scenery, color schemes and music." Also of n