
this picture just reminds me the super-stargate used to cross galaxies
Welcome to Ubuntu 9.04 Desktop Edition
The latest release of Ubuntu brings the best open source technologies together on one platform, with the benefit of free updates for 18 months. Constant improvements, feature additions and extended machine and network support explain why Ubuntu wins more converts with every release. This tour will help you discover, like millions of users worldwide, why Ubuntu Desktop Edition 9.04 is the desktop operating system for you.
Productivity tools: Ubuntu supports all of your favourite web-based mail programs like Yahoo(TM) or Gmail (TM). For the office, Evolution provides all the calendering, contacts and office email you need. Pidgin IM also puts you in instant touch with colleagues and integrates with your personal IM services simply and easily.
Browsing: Includes Mozilla's Firefox 3 as the default browser. Faster, safer and themed browsing for users.
Photos: Upload from your camera or phone to F-Spot and manage, tag, share and sort your photos and upload easily to your favourite social networking sites.
Music and video: Plug in your PSP, iPod, MP3 player; share playlists with your friends; buy in online music stores; visit your favourite sites like Last.fm, stream more live radio and content from the BBC and plug in more devices with uPnP (universal Plug and Play)
Office applications: Word processing, spreadsheets and presentations can all be delivered through OpenOffice.org 3.0 featuring in this release of Ubuntu for the first time. And, they completely integrate with the proprietary office applications out there. The big difference is that they are free.
Accessibility: At the core of the Ubuntu philosophy is the belief that computing is for everyone and access should be free and complete whatever your economic or physical circumstances. Ubuntu is one of the most accessible desktop operating systems around.

oops, just spot this Intel Graphics Performance Guide for Ubuntu 9.04 (Jaunty) Users.
Mine is Intel x3100, which means I need to do some tweaking after the upgrade ...
Jaunty is not a LTS (Long Term Support) release. It's just plain 9.04.
My fault. The most recent LTS is 8.04 .
I found this post to help me fix the sound issue in Jaunty: http://www.ubuntugeek.com/sound-solutions-for-ubuntu-904-jaunty-users.html
for Chinese input, I like fcitx. so, following this post http://www.wangjiajun.com/blog/?p=360
by the way, in Jaunty, to install tp_smapi, I no longer need to provide linux-source package and manually create the links