Complex sentence: The 9500 will also run Java ME applications but some of these are not compatible with the unusually large and wide screen, such that many existing Java games will run, but only use the top left hand corner of the screen.
Split into simpler sentences: The 9500 will also run Java ME applications but some of these are not compatible with the unusual screen size. Many existing Java games will run, but only use the top left hand corner of the screen.