This rumor just gets juicier and juicier by the moment. We’ve started to hear a few rumblings about a so-called “Project Emerald” and with T-Mobile soon to be equipped with quite the attractive new handset. Ever since Microsoft acquired Danger, we assumed that the Sidekick line at T-Mobile was dead. Apparently not. In fact, it seems that Project Emerald could be intimately intertwined with the old popular moniker.