A quick update : iPad specific apps have crossed the 5000 mark in the iTunes Store and its growing day by day. Hopefully it will keep all iPad users busy enough 
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Getting ready for big iPad release tomorrow, Apple has released the locks on iPad Apps. You can now browse the all the apps for iPad through iTunes.
Follwing is a video of showing iPad App store video in action. Probably taken from a computer, it gives a good glimpse of the iPad Apps aka HD Apps nonetheless.
Guys from App Annie and App Advice were able to get hold of the iPad app store screenshots. Along with other new apps, there are some apps with a acronym “HD” attached to them. And it been speculated that “HD” tag will be given to those apps which will be upscaling themselves from iPhone version. Make sense, following are few screenshots of how the iPad App Store might look like :
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