Perhaps for the reason that Google Android operating system is already a year old, as the Android Developer's Challenge will be kicked off after Google's I/O developer conference rather than before, or since the platform dissimilarities between Android 1.0 and Android 1.5 aren't as dramatic as those between iPhone 2.0 and iPhone 3.0, Android applications and the 1.5 Cupcake update failed to produce as much excitement this full year compared to last. However, that didn't stop a couple dozen publishers from showcasing their applications developed for Android 1.5, and it didn't stop us from picking out six favorites. Some of the programs implement newer technologies and solutions that further push what you can do on a mobile phone, while others demonstrated the seamlessness of their service between the desktop and device. With more Android phones expected to arrive on the market, like the HTC Ion Google given away to conference attendees, independent software developers will have greater chance to distribute their applications to a greater audience. >>See all Google I/O news