FM Transmitter Demo
Hi geeks we all know N900 sports a fm transmitter.The N900 fmtransmitter is demoed by Steffen, a member of the Maemo 5 UI Team.The Fm transmitter is basically used to transmit the audio from N900 to the nearby Fm receiver.Here in this below video you can see the working of it.

Hello folks,
The N900 running a linux os so there are many keyboard shortcuts available to us.Lets have a look of all the keyboard shortcuts and various light notification used in N900 for notifying and to start various process.
Notification lights colour:

1.Blue Color light is meant for Application notifications such as an IM or Text Or Email.

2.Orange Color light indicate the battery is getting charged

3.Green Light denotes Battery charge is full

Keyboard Shortcuts Inside the Applications:
1.Ctrl+Backspace takes you to taskmanager .
2.As Usual Ctrl + C for copy text ,Ctrl + V to paste text ,Ctrl + X and Ctrl + A for moving text .
3. Ctrl + O Used to open.
4. Ctrl + N: Used to create a new item .
5.Ctrl + S: Used to Save .
6.Ctrl + Z: Used to undo .
7.Ctrl + Y: Used to Redo .
8.Ctrl + F: Opens the search bar for searching .
9.Ctrl + Right arrow: Function as END key in pc move to the end of the word.
10.Ctrl + Left arrow: Function as HOME key in pc move to the beginning of the word.
11.Ctrl + Shift + P:Used to Capture the screen as image.
12.Ctrl + Shift + X: Opens ‘X Terminal’
Keyboard Shorcuts for Web Browser:
1.Ctrl + N: Opens a fresh window in browser
2.Ctrl + R:Reloads the current page also can be used to reload the feed in RSS Viewer
3.Ctrl + B:Opens the Bookmarks folder
4.Ctrl + D:Save a new bookmark of the opened site
5.Ctrl + S:Save the current page.
6.Circular Zoom:To zoom the webpage

Also 1.Volume Rocker can be also used to zoom.
2.Double tap can also used to zoom.
7.Press Space:To scroll one page down.
8.Press Shift + Space:To One Page up.
Email Shortcuts
1.Ctrl + Enter:To send the current composed email.
2.Ctrl + R:To open new window for sending the reply to the current reading mail.

Check Out Other Tips:
1.HowTo: Create a shortcut to a file on the N900’s desktop
2.HowTo: Browse the N900’s File-system using its Web-Browser
3.How to take the Red-Pill and install more apps on the N900

Thanks to Nokia Experts.