Anyone actually do anything useful with the TPM module?

It seems like a lot of stuff i run across online are mainly applications that people wrote for their own company that utilize the TPM chip and use the Trouser's API.

I was wondering if anyone here has done anything that uses the TPM for creating cryptographic keys? Is there any software out there that can do drive or folder encryption that utilize the TPM? So far I have had no luck finding anything for Linux.

thanks ..

Fascinating nook, but not so much adoption? Software TPM now, too. I suppose if you have any of these, you use it:

Support of MS-CAPI AND PKCS #11 Applications

Microsoft Outlook� and Outlook Express�
Microsoft Office XP, Office 2003 and Office 2007
Microsoft Internet Explorer�
FireFox�
Microsoft Encrypted File System
RSA Secure ID�
Check Point SecuRemote/SecureClient
Check Point VPN-1�/FireWall-1 NG�
Entrust Desktop Manager Solutions
GemSafe for TPM / Smart Card

Also: Re: [TrouSerS-users] Fwd: How to use Firefox and TPM protected certificates? Is this possible??