I have.
Back in December, I posted "Windows Live Search for Mobile", pointing your mobile device to http://wls.live.com/. Don't click there in your browser, though; that link is intended for use with a Windows Mobile or J2ME phone.
By the way: it's time to navigate there with your phone again: we announced the release of Windows Live Search at the 3GSM World Congress in Barcelona last week.
Here's some cool stuff you can do with it. Need a restaurant near your hotel? Put your hotel address in the 'Choose a new location' box and type 'italian restaurant' in the Search box. Click Search:

From here, you can select from a number of restaurants in your search results. Selecting a restaurant gives you a screen from which you can call, direction links for 'to' and 'from', send a text message with the name and location data (including a link) and save the location to your contacts.
What if you know of a place near a place? Clicking 'search nearby' in the 'found' place populates the 'new location' box with the found location data, allowing you to narrow your search to that general area. In this search, I'm looking for the Indian place near the Italian place:
I use Windows Live Search on my Treo each and every day. I'll do some more showntell in my next few posts.
Read about the release on the web: