I come across the following tools and thought it might be helpful to post them here:

ClumsyLeaf.com has a tool called Cloud XPlorer which can be found at http://clumsyleaf.com/products/cloudxplorer. I myself haven't used it but plan to in the near future.

Cerebrata has the following useful tools:

• Windows Azure Diagnostics Manager currently in beta and can be found at http://www.cerebrata.com/Products/AzureDiagnosticsManager/Default.aspx. I myself haven't used the tool yet but came highly recommended.
• Another useful tool from Cerebrata is Cloud Storage Studio which can be found at http://www.cerebrata.com/Products/CloudStorageStudio/Default.aspx. I tried this tool seems to be quite useful for visualizing and manipulating your storage artifacts. Cerebrata also has another variation of the Cloud Storage Studio which they call Cloud Storage Studio/e (e for Everywhere) which is a Silverlight based tool that allows connections to multiple Azure storage accounts

I hope this helps.

- Hanu