Was really excited about finally having the "perfect" tablet for getting work done. But the Surface Pro has some really unfortunate weaknesses and so it will be going back: 1) PDF annotation with the pen is a killer feature, but the Reader program still has the bug where if you annotate with the pen, save, then reopen the file, the writing becomes distorted. Totally insane that they haven't fixed yet. 2) Alternate PDF annotation programs such as PDF Touch do not seem to have good bookmart management. 3) Desktop PDF annotation like PDF Annotator do not have palm rejection, are not compatible with Metro. PDF Annotator is also slow with large pdfs, such as ebooks. 4) Exporting to OneNote is too slow and not as good as just annotating a PDF directly. 5) Obviously, the battery life. But mainly, the PDF annotation capability of the device is just really dissapointing, especially given how awesome the hardware is (battery life excluded).