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Hiding apps would be the only way, since u already purchased them, if u could delete them from itunes, how do u expect to get them back?

True I meant mainly free apps.

Well hide doesn't seem to hide them permanently they come back after reopening the store. :(
p9
 
In iTunes, under the "Quick-links" you'll see a link to "Purchased" - that's where you can see all the stuff you bought... to see hidden purchases, you have to go to your iTunes Account page.
 
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