What’s the iPad’s best application? According to Apple, it’s Palo Alto-based startup Flipboard. With a slimple flip of the finger, iPad owners can now sit back, relax and surf the web like a print magazine all for free. According to founders Mike McCue, 43, and Evan Doll, 29, Flipboard has in effect “magazinified” Twitter and Facebook. With Flipboard’s new so-called …