Microsoft has released the Microsoft Dynamics CRM 3.0 List Web Part. If you've started using CRM v3 and you have a SharePoint Portal of Windows SharePoint Services setup, you can use this web part to bring data from CRM v3 into your SharePoint pages to build dashboards and information pages for quick, at-a-glance data.

You can downloaded it here. From the site and the documentation, here is a brief overview:

The List Web Part for Microsoft® Dynamics™ CRM allows users to view their Microsoft CRM data from a Microsoft Windows® SharePoint® Services 2.0 page. The records are displayed in a grid that behaves similarly to the grid within the Microsoft CRM application. Users who have the proper privileges will be able to perform actions such as create and edit. It allows users to view Microsoft CRM records as a list from a SharePoint dashboard, open records in Microsoft CRM 3.0 from the list, and connect Microsoft CRM Web Parts to filter different lists.

Microsoft CRM security is maintained at the grid and record level. If the user does not have access to a particular record, it will not be visible in the grid. Likewise, if the user does not have privileges to view the entity configured, an error will be displayed to the user. The Web Part uses adaptive UI. For example, if the user does not have permissions to edit accounts, the Edit button will not be visible to the user.