The new CEO was awarded restricted stock equal to .0011 of the average number of shares outstanding--giving him the hope that if the next decade goes well, he may become the owner of an additional 1/10 of one percent of the company he runs. Concomitantly, each shareholder, by virtue of this grant, has been potentially diluted such that each may own only 99.89% of what they owned immediately prior to the issuance of the RSU's. At today's closing stock price, the potential cost per share of this grant was 41.33 cents.
Cook has been the de facto CEO of one of the most highly-valued public companies for quite some time now, and Steve Jobs and the Board are obviously convinced that he is better-suited to formally take the CEO role than anyone else. Providing this unique individual with a powerful incentive to remain with the company and to align his personal financial success with its shareholders is something an overwhelming majority of Apple shareholders would see as being in their best interest, and certainly worth its minimal potential dilutive effect.
Those offended by the extraordinary wealth this calculus can confer on the recipient (particularly in contrast to the average wage of Apple employees, or to that of workers in general), may be consoled by the realization that there are only a very few people in the world who have the requisite attributes to be accorded such opportunity and who also occupy a position where their performance can increase the aggregate wealth of those paying them by far more than they receive.