The Platform Update for Windows 7 enables improved features and performance on Windows 7 SP1 and Windows Server 2008 R2 SP1. It includes updates to the following DirectX components: Direct2D, DirectWrite, Direct3D, Windows Imaging Component (WIC), and Windows Advanced Rasterization Platform (WARP). In addition, there are updates to the Windows Animation Manager (WAM) , XPS Document API and the H.264 Video Decoder
Update Tuesday (Tomorrow 26th Feb 2013) see's Microsoft releasing platform updates for Win 7, 8 and RT. It is thought that the final version of IE10 will be released for Windows 7.
You can download a pre release version, detailed above, now.
Download Platform Update for Windows 7 from Official Microsoft Download Center
The pre release version of IE10 can be obtained below:
Download Internet Explorer 10 Release Preview