In case you haven’t seen it yet, the Office Sustained Engineering team has announced the availability of Office 2010 SP1 and SharePoint Server 2010 SP1. You can find there post on it here: Office 2010 and SharePoint 2010 Service Pack 1 Availability

Here are the relevant links for anyone interested:

Updates Resource Center For SharePoint 2010
This page provides resources for IT professionals who are responsible for installing software updates on SharePoint 2010 farms.

Service Pack 1 (SP1) for Microsoft SharePoint Foundation 2010 and Microsoft SharePoint Server 2010 (white paper)
Describes the fixes and improvements to existing functionality that are included in SharePoint Server 2010 SP1 and SharePoint Foundation 2010 SP1.

Service Pack 1 for Microsoft SharePoint Server 2010 (KB2460045)
Service Pack 1 (SP1) for Microsoft SharePoint Server 2010 contains new updates which improve security, performance, and stability. Additionally, the SP is a roll-up of all previously released updates.

Service Pack 1 for SharePoint Foundation 2010 (KB2460058)
Service Pack 1 (SP1) for Microsoft SharePoint Foundation 2010 contains new updates which improve security, performance, and stability. Additionally, the SP is a roll-up of all previously released updates.

Service Pack 1 for Microsoft SharePoint Foundation 2010 Language Pack (KB2460059)
Service Pack 1 (SP1) for Microsoft SharePoint Foundation 2010 Language Pack contains new updates which improve security, performance, and stability. Additionally, the SP is a roll-up of all previously released updates.

Service Pack 1 for Microsoft SharePoint Foundation 2010 Client Object Model Redistributable (KB2508825) 64-bit Edition
Service Pack 1 (SP1) for Microsoft SharePoint Foundation 2010 Client Object Model Redistributable 64-bit Edition contains new updates which improve security, performance, and stability. Additionally, the SP is a roll-up of all previously released updates.

Service Pack 1 for Microsoft SharePoint Foundation 2010 Client Object Model Redistributable (KB2508825) 32-bit Edition
Service Pack 1 (SP1) for Microsoft SharePoint Foundation 2010 Client Object Model Redistributable 32-bit Edition contains new updates which improve security, performance, and stability. Additionally, the SP is a roll-up of all previously released updates.