By default it will install into /Xcode4, so you are safe to just click though almost blindly. This could change after the final release.
After install size is 5GB.
Very unstable, crashed on the first launch, the reason was because of all my existing Xcode 3 plugins.
Crashed again after removing all the plugins. Then succeed on relaunch.
Look and feel
As you’ve already see from the internet, the first reaction is this thing looks more like iTunes than Xcode 3.
Organizer has been redesigned from ground up, it’s much easy to find the information you want.
Another very interesting thing for Organizer is Document has been merged into Organizer now, which will help me to have one less window open.
Preferences window has been redesigned and simplified, there are only 7 icons you can click on:
Alerts, which is new. Documents, Fonts & Colors, Text Editing, Key Binding, Building and Source Trees.
Favorites Bar is gone, replaced with much more useful Tab bar!
“Get Info” has been converted into “Utility” and put into the workspace as right sidebar.
Original “Project” Tree has been converted into tab based navigator as left sidebar.
If you’ve already tried “GrowlCode“, this is not new for you. If not, you’ll love this feature.
There’s one new default app in iPhone Simulator: Game Center, can’t get it working though.
Very well redesigned! Very buggy!