Depends on the apps. Some can be moved. Some cannot. Even the ones that can be moved are not 100% moved to the SD card.

 

You don't need to worry. I got over a hundred apps in my Droid Incredible and used up only less than half of 1GB of the internal phone memory. You see, most Android apps are small, ranging on average, from less than 1mb to 2-3mb.

First you need to know a few things.

1. Games. Big games. These install directly to the SD card as soon as you download them from the Market. For example, there is a PSP game called Spectral Souls that is ported to Android. It leaves something like 1.5mb in the internal phone memory, and over 1GB in the SD card.

2. Many apps --- almost half of apps I encounter now --- are signed to be movable to the micro SD. They will install on the internal phone memory first, but if you go into the phone settings, under Managing Apps, then click on the app, there is a button that says Move to SD. If the app allows it, it can be pressed. If the button is greyed out, it cannot be transferred.

There are apps in the Android Market, like Apps 2 SD, Apps To SD, or Move to SD, that will scan your apps and notify you which can be moved to the SD card.

3. Although some apps insist on staying on internal phone memory, they put their caches on their micro SD. That gives them a small memory footprint.

 

Welcome to the forums!

I think you'll find that's great info so far, and I've moved your post over here to the Sensation forum - I think you'll be wanting to chat with Sensation owners as time moves on.