<p>Hmm, a couple of reasons (in addition to the likely idea that they don't think that a likely letter is warrented at the first read) that they may not come or be delayed:</p>
<p>1.) Waves. Like has been said before, the letters may come in waves depending on when they are read. This way, many who would/should/will recieve letters are not yet left out.</p>
<p>2.) Date of admission. Materials sent/recieved earliest may recieve priority.</p>
<p>3.) Reader. Perhaps some readers have yet to make final decisions on the information.</p>
<p>4.) Mid-Year Report. If they have not been recieved (my school only recently recieved grades), then perhaps they hold off. If a student got three Ds on their first semester, then they probably wouldn't admit them even if they were the strongest candidate before then. As the likely letters apparently don't even say likely, then they may want to be cautious.</p>
<p>5.) Randomness. It happens. They can't mail out all of the decisions yet (Ivy agreement), so between students they have already admitted, it may not be a clear choice.</p>
<p>6.) Mail. Mail takes different times to travel across the country, and may not all be sent on the same day.</p>
<p>7.) ED. ED applicants (if accepted now), may be recieving priority with the limited number of legal (Ivy agreement. They don't want to push the bounds) likely letters ready. Or inversely, because they have already shown a large committment to Dartmouth, they may be put off in hopes of attracting other students.</p>
<p>However, in lieu of all of my personal comfort by the above list, I believe that it still means that we are up in the air (a little worrisome for AI 9s like myself). And yet, I was deferred and not rejected EA from Yale, so there can't be a terrible deficiency in my application.</p>
<p>I hope we can get in eventually.</p>
<p>Best of luck,
Nickleby</p>