Yes I have launched and used each application at least once.

I open the market. Once in the market I visit the menu and select the my apps menu item. Normally this would list every app I have downloaded and installed through the market.

I have been unsuccessful at displaying my installed apps. I have rebooted a few times now and no apps under the my apps list. Under 2.1 this was more stable and would more consistently list all of the apps installed through the market.

Visiting the applications item on the home screen does show the installed apps.

Visiting the settings, applications, manager applications, and third party list will show the same apps are actually installed.