"What's this thing? It looks pretty cool. What pretty icons! Can I touch them? I can, really?" Etc. That basically describes our infantile thought process when we stumbled across the DreamScreen 400 (not to be confused with the DreamScreen photo frame line), a new all-in-one desktop from HP, but suddenly it all became clear: this thing is built for the Indian market, and us chubby Americans will have to keep on dreaming. Still, it's an interesting thought experiment. HP has long sought to differentiate itself in its Windows-based offerings, and even at times abandoned its first OS love with its