early info on this diminutive shooter only indicated it'd be waterproof, so it's a pleasant surprise to see some further optimizations thrown in for use in less hospitable environments. You'll be able to go down to 10 feet under water with the TX5, drop it from a 5-foot height, or explore the tundra at temperatures as low as 14 degrees Fahrenheit (-10 Celsius) without the camera throwing in the towel. So Sony claims anyhow. Other features include a now confirmed 10fps burst mode, a 10.2 megapixel Exmor R CMOS sensor, 4x optical zoom plus optical image stabilization, and a 3-inch touchscreen on the back. The one thing that doesn't make the transition from rumor to reality is the reputed 1080p movie mode -- the TX5 makes do with a still desirable 720p video recording. Sony's also kicking out the DSC-H55 (pictured after the break) today, which will have the same video mode, but adds a 10x optical zoom and a thicker, non-weatherproofed body. Both cams will happily write to Class 4 and above SDHC cards when they debut this April, priced at $350 for the TX5 and $250 for the H55.