PalmOne m500 Handheld BULK PACKAGING Windows and Macintosh compatible--includes desktop software for both platforms New, advanced monochrome LCD screen makes it easier to see in dim light and in bright sunlight Built-in 8 MB memory stores thousands of contacts, appointments, to-do items, and notes New Secure Digital Card/MultiMediaCard expansion slot for additional memory and functionality such as a dictionary/thesaurus, games, and more