*bang! hit my head against a wall*

lol guys,erm I have a problem....with the maemo sdk here my situation:
-I have read the documentations
-Install maemo sdk with ubuntu intrepid
-download Vmplayer
-Unzip,run everything....etc
-Run Vpm,open maemo,login
-Hit the wall
-Xephyr doesnt run.I have write the command to install,then he ask me about some packages two time,I confirm then I put the command to verify..... "xephyr is not installed"

oh man!this is so complicated!

I'm going to try Nokia Qt now....

edit:
I'm back,Nokia Qt is..is easy

I wish I can use the maemo sdk too..

I want to measure power consumption on a Nokia n810 or n900. I want to use the DVFS APIs to adjust freq/voltage. My aim is to minimize the total power consumed by a video encoder by lowering the freq/voltage when there is greater slack to frame-rate deadline.

Can I do this on some simulator for the n810 or n900? It looked like installing the Linux SDK was the best option. Can the included simulator estimate power consumption? Or, will I have to use an actual physical device?