Note to Microsoft, HP, Dell, and whoever else wants to get in the next-gen tablet game: your concepts are nice -- even spectacular, in the case of Courier -- but Apple's about to actually ship a product, and investors are taking note. AAPL shares hit a record high of $219.36 this afternoon after the news that iPad pre-orders would begin on March 12 with an April 3rd delivery day, and they closed at $218.95, which is up around four percent. That's got us curious: given the choice between actually purchasing the iPad and twiddling your thumbs waiting for unannounced, unpriced, and even possibly un-real devices like the Dell Mini 5, the HP Slate, or the Courier, are you taking the sure thing or holding out for your vaporous dream device? Hit us up in comments -- and be nice to each other, it's the weekend.