After updateing to lion you’ll probably want your User-Library folder back in finder. It’s hidden by default.
You have 2 options:
First, you can press the options key while clicking finder’s got to menu and the hidden folders will be shown.
For a permament visible Library folder in Finder please open a terminal window and type:
chflags nohidden /Users/[yourusername]/Library/
If done you’ll see your Library-Folder in Finder again as you’re used to.
You wanna be fancy and you’re tired of the good old black iPhone Simulator while developing your brandnew app?
White iPhone Simulator
In this case you should look over to http://aentan.com/design/white-iphone-4-simulator/ and download the two png-Files on http://www.cl.ly/7GIA.
Place them in Macintosh HD/Developer/Platforms/iPhoneSimulator.platform/
Hint: To open iPhone Simulator.app as a folder, right-click it and choose Show Package Contents and you’ll the the used graphics called homePressed.png and frame.png. Of course it’s a good idea to backup the original Files for the black iPhone, so can switch again if you’re fed up with the white Simulator