This is hard to pass up -- the Mark Bittman ouvre, How to Cook Everything, which is $21 and change over at Amazon, for the bargain basement price of $1.99 in an iPhone app -- that is, if you've already spent hundreds on the iPhone itself.

Mark Bittman? There's an App for That - Slashfood .

How to get our Bittman fix? Let us count the ways: There's his New York Times "Minimalist" column, of course; his expert contributions at KitchenDaily.com; his health and fitness articles for Runner's World and Men's Health; and, lest one forget, his 1044-page tome How to Cook Everything. I happen to own that $35 behemoth myself; I thumb through it compulsively, getting Bittman's take on everything from scrambled eggs to bouillabaisse. But now the book's contents can be downloaded to your iPhone -- for less than two bucks.

Culinate, the smart food site, is apparently behind the app. What a great idea. I can't wait for more.

Oh, wait there already is more. Michael Ruhlman has an iPhone app too, based on his book Ratio. It helps you calculate ingredients in "all fundamental culinary preparations."

Now, Rodale, where are the organic gardening apps? J.I. Rodale would have been all over this. 

- Samuel Fromartz