It looks like those itching to try out Xandros' instant-on Presto Linux distribution needn't linger in drawn out boot processes any longer, as the beta version of the OS is now finally available for download from all the usual sources. Unlike some other instant-on OS environments, Presto is designed to sit alongside Windows rather than replace it entirely, with it giving you the option of selecting Windows or Presto each time you boot your computer. If you select the latter, you s