NEW YORK ( TheStreet) -- In an attempt to catch up with the Apple ( AAPL) iPhone, Google ( GOOG) has been racking up Android phone partners at a fast clip. The search giant's burgeoning Android operating system was hot news at last week's CTIA show in Las Vegas, with Sprint ( S), AT&T ( T) and Dell ( DELL) among the handful of telco and tech shops beating the Android drum.Google's got good reason to viciously stake a claim in the smartphone market. Research outfit Strategy Analytics says that smartphone sales grew by a massive 30% during the fourth quarter, which ultimately helped drive Apple's recent first-quarter results. Tech analyst firm IDC also expects the Android system to mount a major offensive -- and not just against Apple's iPhone OS. IDC sees Google swiping at Microsoft ( MSFT), Research In Motion ( RIMM) and the Symbian operating system, which is championed by Nokia ( NOK). IDC predicts that by 2013, Android will be the No. 2 operating system, trailing only Symbian. Despite facing criticism from developers concerned that Android has strayed from its open-source roots, the OS is moving into other categories, including tablets and pocket-sized gadgets that fall somewhere between smartphones and mini laptops. With Google reportedly sharing search-ad revenue with its Android carrier and handset partners, it is hardly surprising that its OS is establishing a foothold. Read on for more about five of the newest Android devices taking on Apple.