App store analytics provider and Distimo and Skyhook Wireless have put out their latest report on location-based apps. Skyhook used to do this alone and recently teamed up with Distimo for a more complete picture of location apps on multiple smartphone platforms.

The top free location apps in the iTunes store contain some household names and some surprises:

1. Google Earth Google
2. MapQuest 4 Mobile AOL
3. Yellow Pages Avantar LLC
4. Urbanspoon (IAC)
5. Yelp
6. Traffic.com uLocate Communications
7. Trapster speed trap alerts
8. AT&T Navigator: GPS navigation
9. Kayak Flight and Hotel Search kayak.com
10. MotionX GPS LTE MotionX
11. priceline Hotel Negotiator priceline.com
12. WHERE uLocate Communications
13. GPS Tracker InstaMapper LLC
14. NYC Subway Map Gotham Wave Games
15. Restaurant Finder Softweb Solutions Inc.

What this illustrates is that PC brands have significant "equity" but that doesn't immediately or always translate into mobile leadership. And now the rest of the data (charts by Distimo/Skyhook):

I haven't included the paid apps lists but take a look and compare the free apps in the Apple, Android and RIM apps stores. Multiplied Media's Poynt is the top LBS BlackBerry app but not available on the other platforms yet. Yelp is only on the top list for the iPhone. Where/uLocate is the only app present on all three lists: