Last year we told you about a few plugins for Microsoft Outlook users with Gmail envy. Here's another one for that list: Priority Inbox for Outlook.

This is a third party plugin not associated with either Microsoft or Google that can organize e-mail in a way similar to Priority Inbox feature in Gmail. It costs $19.90 and is available for Outlook 2007 and 2010.

Priority Inbox for Outlook competes with ClearContext, a well established Outlook plugin that actually pre-dates the Priority Inbox feature.

I would love to see a similar plugin for Thunderbird or Claws.