Remove Apps from Launchpad?

Drag them to the trash.

EDIT. Only works with some apps. odd...

 

Removing old version core apps

I was fortunate enough to find this gem.

https://discussions.apple.com/message/15659479#15659479

It worked. I went to my finder/applications folder and noticed that there were in fact duplicates. I checked the info on both versions and then just deleted the older one. The launchpad automatically updated itself!

Note: I did this for duplicate apps.

 

Unfortunately, AFAIK there is no way to remove non-App Store apps in Launchpad. Holding option on Launchpad gives you the wiggle mode and a little x on the app store icons to remove them.

I fully expect this to be fixed in 10.7.1. There is a way to do it, but it's a real pain in the ass. You can go in and edit the db file that Launchpad stores it's icons in, but they come back when you add a new app to the applications folder

 

Just found the answer on the Apple forum. If you open Finder, click on Applications, there should be a folder labeled Applications in there. These are all the applications that were in Snow Leopard. I guess it was put there by the installer. After you drag it to the trash and reboot, Launchpad will no longer show any duplicates. Anyway, it worked for me.