Olympus has recently announced the release of Olympus E-500 Firmware Ver. 1.2. The firmware Ver. 1.2. will add a menu fuction for exchanging AEL/AFL button and one-touch WB button. It will also improve the precision of exposure by built-in flash. Exposure level of built-in flash with the combination of some of lenses* is improved.
*) Sigma Corp. Four-Thirds lenses (18-50mm F3.5- 5.6 DC,18-125mm F3.5-5.6 DC, 55-200mm F4-5.6 DC)