The only phones I know of are the HP iPAQ hw6515 Pocket PC (http://www.shopping.hp.com/webapp/shopping/product_detail.do?storeName=storefronts&landing=handhelds&category=handhelds&orderflow=1&product_code=901502&catLevel=1)
iPAQ hw9515(http://h10010.www1.hp.com/wwpc/uk/en/sm/WF05a/21675-21679-21679-21679-297609-12343242.html)
and I believe eten makes a gps phone as well.
I am waiting for the price on the HW9515 to come down, it looks like an amazing phone!
