PowerShellAnalyzer and PowerShell+ are both great products putting emphasize on different aspects. Until both are merged, you can use both for the price of one. As you can see below, both products complement each other well:

Feature (click a feature to learn more) PowerShellAnalyzer 1.0 PowerShell+ Beta
Debugging PowerShell Scripts partially supported full support
Rich UI-Console (truly native console with full intellisense-like UI) not supported full support
Rich help system for cmdlets, aliases etc. full support not supported
Graphical visualization of pipeline output full support not supported
Code Snippets not supported full support
Intellisense full support full support
PowerShell Drives and Providers Explorer full support not supported
PowerGUI-like Navigator Support and Dynamic Context Menus not supported full support
Multiple Runspace (tabbed Runspaces) full support not supported
Real-time Variable and Property Monitor not supported full support
Editing with color syntax highlighting full support full support
Support for XML-documents including XSD support not supported full support
Support for c# and VB.NET documents including compilation not supported full support
PowerTAB tabexpansion integrated not supported full support
     
Legend:
fully supported fully supported
partially supported partially supported
not supported not supported