The guys at Google’s Android team have finally announced the first release of Android 1.5 beta SDK. The one we had reported earlier was just a teaser and this one is a step closer to the real thing. But wait, there is a caveat – the new OS is currently available only for developer phones, which means that those using normal T-Mobile G1′s will have to wait just a bit longer to get a bite of Cupcake. Meanwhile, all you devs out there can get their hands of RC1 of Cupcake from here.