Thanks for your answers.

My camera is a Pentax K110d, is compatible with SD and MMC, so as long as i have the right adapter it should accept the RS-MMC card. While reviewing the images is important, i'm not sure if i'm willing to pay +$200 for that, PDF and compatibility with Google Apps are far more important.

The price difference is important for me at this point, i could afford the m800 but i would preffer to save the $200, unless i have to.