APS Technologies, a leading vendor of data storage devices for the Mac [and a sponsor of TidBITS -Adam] has recently released version 4.0 of its disk management utility, APS PowerTools, which is bundled with every APS drive. ProSoft Engineering wrote version 3 of APS PowerTools for APS, but after the release of version 3.6 the contract with ProSoft was discontinued, and APS licensed PowerTools 4.0.x from CharisMac Engineering