[This is an official Smartphone Experts Round Robin post! Every day you reply here, you're automatically entered for a chance to win an iPhone 3G, Case-Mate Naked Case, and Motorola H9 Bluetooth Headset! Full contest rules here!]

CrackBerry Kevin is a productivity machine, no doubt about it. When he's not literally typing the plastic off his BlackBerry Bold keyboard, he's simultaneously answering 87 emails, browsing 64 websites, exchanging half-a-nation worth of PIN messages, and running his trackball in 9 directions with both feet!

Well, this week our best frenemy has to put his addictive little messaging monster aside and immersed himself in a smartphone about as different as a smartphone can be: The iPhone 3G.

We here at TiPb know it might take Kevin a while to break out of his BlackBerry bonds and slip into some next generation iPhone duds, and he knows it too -- he's asking for your help in our forums!

Remember, each day you reply to his questions, you get another chance to win an iPhone 3G and accessories!

(And if by chance you want to win an HTC FUZE, or an Android G1, Palm Treo Pro, or BlackBerry Bold, be sure to hit up every Smartphone Expert site!)