No, not the DIY store (slightly parochial UK reference, there), but a new add-in and Code2Fame submission from Aleksei Nipirakis.
Home Base is an add-in which enables you to log in to and download files from your home server from a Windows Mobile powered device.
As an added bonus, Home Base also allows you to host a blog directly from your home server, which you can maintain from any of your home computers or a wireless device whilst you’re on the move.
More Info: Download | Feedback and Support

September 12th, 2007 at 9:32 am
Great news! Now we just need the first WHS in stores here in Denmark
September 13th, 2007 at 1:30 am
There was an issue with certain classes of Windows Smart Phones. If you are using a non-Touchscreen or non-Professional version of Windows Mobile, you need the client here:
http://www.alekseibytecode.com/SmartPhoneWHBClient.exe
Thanks,
Aleksei