i just got the PEGSJ30 and was considering getting a foldable keyboard...but the only ones i could find are made by Sony and are expensive..the other say they are compatible w/PEG T,NR,NX,3xx. does anyone know if those will work as well or have any alternatives that are cheaper than the Sony keyboards. btw any opinions on docking cradle/combo sync/ac adapters would be helpful too (sony is so stingy...this didnt even have acradle)