Need some help guys

while installing nitdroid all went well (eventually) but I got as a last line:
'uninstalling any incompatible software.....FAILED Bailing out...
Iso the line I should have:
Unmounting /dev/mmcblk1p2 ...done

************************************************** ********
_____ ___ ___ ___ ___
|\ || /| /____/ | \ | \ | \ /| | \
| \ || || | | | |___/ | | || | |
|| \ || || || || | ||\\ || | || || |
|| \|| || || ||__/ || \\ ||__| || ||__/

************************************************** ********
* *
* has been succesfully installed! *
* *
* You may now reboot the device with keyboard open *
* to boot into NITDroid. *
* *
************************************************** ********

When I tried apt-get -f install I get:

E: could not get lock /var/lib/dpkg/lock - open (11 recourse temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? ....

Hope that anybody can help with with this =)