A Sidekick for the low price of $99 is enough to get any Danger fan excited -- but just what do you give up in exchange for the price break? That's precisely what T-Mobile is about to push out the door to give the cash-starved (and the frugal) among us a taste of the older, higher end Sidekick 3. LAPTOP Magazine had the chance to sit down and put the iD through its paces, pointing out the glaring lack of MP3 playback, camera, Bluetooth, and expandable memory. On the flipside, though, what's left is still Sidekick through and through: a messaging focus, mobile web surfing and the typical Hiptop form factor that makes voice calling just a tad awkward. More is lacking in the iD, though -- the lack of even 2.5G EDGE data is going to make serious surfing an exercise in frustration. Are there any old-school GPRS fans out there still? We thought not, but there probably are a few Sidekick-for-$100 fans. All told, LAPTOP was digging the myFaves integration (you're next, Sidekick 3 users) but found the nixed features a little tough to swallow, suggesting folks might be better served saving up a little extra coin for the 3 or a Motorola Q to get mobile multimedia done right.