My mom is using my old 1.25 Ghz eMac with 1 GB of ram as her sole computer. It is running Leopard comfortably, but does go through spells where it slows down considerably, especially on the web. So I thought maybe I'd install a second drive where the combo drive used to be and install the latest PPC version of Ubuntu. Would Ubuntu offer any significant speed increase? And how is the availability of apps for Ubuntu PPC? Like the Spotify for Linux Preview or LibreOffice?