The online Tool - ToT

I wonder, as more and more people spend more and more time connected to the internet, why there still isn't a "one tool does it all" software?
Start when you boot, retrieve all the latest infos, and manage everything "www"...

Firefox + Sage gets you browsing and RSS, you still need an email app', a calendar with task management preferably, and if like to work with music, some app like Win MediaPlayer, WinAmp or other.. At the top/bottom/side a bar for instant messaging (preferable integrating Trillian or Jabber).

I would like just one software, which stays open all day (and night.. ;) ), with tabs for quick switching between tasks:

• browse/
• mail & contact manager/
• feeds/
• calendar&tasks/
• notes
• a welcome page which includes an audio player (either local files or online streams), reminders and list of tasks for the day, "my image of the day", horoscope, biorythm, links to bank accounts, links to my Amazon pages (orders, affiliate) notifications...

and which will show taskbar pop-ups (like the Thunderbird "new mail" notifications) for everything (configurable depending on "i don't want to be disturbed now" or "it's ok"): mail, rss feeds, current song, IM...

It should of course be able to synchronize with other apps (mobile devices..), export data (tasks, playlists, contacts..), be skinnable (I'd want a "panther" or "milk" look to start with), open to extensions (maybe Picasa/Hello/Blogger integration? is there anything missing?), never crash, minimize to taskbar and of course be open source!

(just kiddin' on that one, I'd be prepared to pay for something like that! but don't tell!)