whilst searching the USA site on a App that was voted here very cool came across this ....if you like searching the App stores this is the bee's knees of them all...
the low down...
PositionApp offers depth of information that the iTunes App Store does not, with historical data covering the last five months, coverage of the top 300 rather than just the top 100 apps in each category and easy viewing of all the app stores of the world.
* Live country by country performance stats on the Top 300 apps.
* Highlighting the biggest climbers in the Top 100 and the Top 300.
* Detailed historical performance data of the hottest apps.
* Track selected favourites on your personal dashboard.
* Easily find, purchase and share apps.
* Easily find and purchase apps.
* Browse detailed data by: