As you may know I released Pinguy OS 10.04.1.2 Branded version a couple of days ago, what you might not know is this version can be upgraded to 10.10 Development.
If you do decided to upgrade, it shouldn't be done lightly, this could make your system unusable. At the moment more then half the PPA's/Repositories haven't upgraded to Maverick yet so most of the apps are not going to get updated until there PPA's/Repositories have been upgraded.
If you still want to give the 10.10 Development ago this is how you do it.
First replace every "lucid" coinsurance in the sources.list file with "maverick" and run a dist-upgrade:
Next thing you have to do is run the following commands to upgrade to 10.10 Maverick.
sudo sed -i 's/lucid/maverick/g' /etc/apt/sources.list && sudo aptitude update && sudo aptitude dist-upgrade
Once all the updates have been downloaded and installed restart your computer. Once back up and running you need to right click the main menu button and select "Edit menu" > highlight "Administration" then tick "Software Sources" and exit.
sudo aptitude install update-manager-core
sudo do-release-upgrade -d
Now go to "Administration" > "Software Sources" and tick all the PPA's/Repositories and refresh the sources. Next go to Package Manager/Synaptic Package Manager and click on "Mark All Upgrades" then "Apply".
The version of Pinguy OS 10.10 that will be released won't be exactly like this, but will be very close.