I saw one like like this last year at a shop on the third floor in Funan next to DOML. But the SD Card is still protruding out when you stick it to the CF adapter,making it impossible for use with digicams, as most digicams turns itself off when you open the CF Door. Looks like it is intended for PDA.
However Minolta provided firmware upgrade for the DiMage 7Hi few months back, so the camera can use SD to CF Adapter Cards, which means that even a camera can work with the CF Door opened (like Coolpix 3100), it does not mean that it can use SD in an SD to CF Adapter
Additional: I think it is CF Type II anyway, but have a look.
Storage Studio ( or was it Memory World ? ) sells a multi-card adaptor ( it's SD/MMC/MS/etc to CF ). You can use it to read/write SD, Memory Stick, etc on a CF slot. SInce it's a muli-adaptor, it sticks outside the CF slot. It's around $50.
I've been hunting for one myself, to use SD cards in my CFcard-only camera. Found one by Hama selling at $39, at Sim Lim Sq, but realised that the SD card sticks out of the adaptor, and the adaptor itself sticks out of the camera, making handling quite cumbersome. Panasonic does make one as well, but it costs $99. Not worth it, IMO. Might as well buy another CF card.