Here's a small tutorial how to get root access on your IQ. I'm kinda new to the android scene (this is my first android device, perhaps getting a Nexus S in the near future) so this is just a how to root guide. How to install marketplace and calendar will be my next project
How to root the IQ:
1. Install LaucherPro
2. Longpress the homescreen untill you get the 'Add to Home screen' window.
3. Choose: Shortcuts->Activities->Settings->Development (com.android.settings.DevelopmentSettings)
4. Lauch the newly created Development shortcut and check USB debugging
5. Install z4root.1.3.0.apk and use it to get full root access