mere million phone announcements today, Sony Ericsson is also adding the Z530, K510, and K310 to their lineup. These three are holding up the low-end, so there aren't a lot of surprises, but there are cameras and Bluetooth radios across the line. The K510 (pictured) is a 1.3 megapixel shooter, but is limited to its 28MB of included memory, while the Z530i -- little brother to the W300i Walkman clamshell -- only does VGA, but allows memory expansion via a M2 slot. All of the phones support music, but you're not going to make it through many tunes on the 15MB K310 which features a VGA res camera. All three of the tri-band GSM devices sport 128x160 LCDs, no word on price or availability. Click on for pics of the Z530i and K310.