FREE - In Google Play
FREE - in Win Phone Store
hey, i use linux, and the program that works for me best is scid for analysis. it's free and there's a windows version as well. arena has been recommended to me as well but i don't use windows. with 'scid' you can import engines no problem and view games, annotate yourself, or pit engines against each other. handy little tool. i sometimes wish the graphics were better, but chess is chess regardless of how smooth or drop-shadowed the pieces look.