HotelPal is a free app for the iPhone and, with version 2.0, optimized for the iPad. It provides an interesting price-centric view by tagging hotel locations with a price instead of a name on a Google map view. Thumbnails at the bottom of the screen provides more information about hotels including its name, star rating, distance from the search location, and estimated room price.
Tapping either a map flag or a thumbnail provides a detailed view about a specific hotel and lets you make a reservation through Expedia. The previous version of the app had a 2.5-star customer rating (4135 ratings). However, with only 5 ratings so far, the 2.0 release has a 5-star rating.