To that end, Sony deserves credit for the flexibility it's offered with its relatively expensive and unpopular Memory Stick Pro Duo.

ENGADGET: Switched On: Stuck in the Middle with UMD

In addition, these guys accommodate all the standard media card formats, including CompactFlash, Microdrive, SecureDigital (SD), SDHC, (Memory Stick) MS, MS Pro, MS Duo, and MultiMediaCard (MMC).

ENGADGET: Jobo unveils two new GIGA photo storage devices

Shark floor-cleaning devices, owned by Euro-Pro Operating LLC, overhauled the design of its electronic Sonic Duo floor cleaner, set to launch in April, after tests revealed how strenuously some people used it.

WSJ: Cleaning Products Get Stronger Even Though Scrubbers Insist On Using Elbow Grease