CompactFlash Association Announces CF SATA Development
 

Currently, CF cards have PATA (parallel ATA) interfaces which provide up to 133MB/second data rates and are available up to 32GB with sustained data rates of 40 MB/second. With the switch to SATA interface, the cards will provide much higher data rates.

http://www.dailytech.com/article.aspx?newsid=8104