if you have a 2gig card or higher and move the apps to the card...jeez, I have between 20-30 apps. But I am not an expert!! we have great Mods here that will lead you in the right direction!!
Moving apps to your card is doing just that, moving them. You can't run apps from your card, so you will need to install them in device memory anytime you want to use them, and delete them when you need more free memory. There is an app called Aerize Loader that automates this process. However, I believe settings aren't saved for the app, so each time you install it in device memory the app has to be reconfigured.