[chas123]

Yes, it is dependant on the theme used. A more graphically intensive theme will use more.Mshell with a custom theme on my qvga device with used ~1.2 meg at boot and would creep up to ~4 after extended periods. On my vga device, the identical theme (meaning looked identical) could run up to 12. Currently, on my vga device, I am running a version of mshell that I stripped bare bones and integrated into a compressed version of tf3d. Together they boot ~4.5 and seldom stray over 6