A consortium of Taiwanese companies is proposing yet another memory card format. Fortunately, the new format might have a few things going for it: It will be compatible with SD and MMC formats (with additional drivers), it will offer twice the speed of USB 2.0 and will be cheaper to produce. It will also consume only one-third or one-fourth the power that USB 2 requires. The new format will be called an M¼-Card (for micro ¼ card).
Rather than using the SD I/O protocol, the M¼-Card will use the USB protocol. Apparently, the latter protocol is much easier to use and will result in cheaper production costs.
No street date information is available – the consortium is still working on the specification.