Newer versions of Eclipse have a feature which is very useful, which should be "embraced" (copied) by Netbeans.  They have a mechanism where you can abbreviate package names in their version of the Projects window.  For example, you can specify something like "com.mylongdomainname.myapp = my app" and packages that start with "com.mylongdomainname.myapp" will be abbreviated as "myapp.whatever".  This removes a great deal of redundant information, saves a great deal of horizontal space and you can make the Projects window narrower or do less scrolling.