Competitors to iPhone are typically dirt cheap, or sometimes free. This is part of the reason for the success of Android. Competitors to the iPad are costing $500-$800. There is no way to use price to gain competing tablet customers....
The reviews say that the numerous missing pieces are supposed to be ready by summer. Why doesnt RIM release the PlayBook in the summer instead? You can ruin a brand with the release of an unfinished product.
RIM, the premier mobile email device company, is going to ship PlayBook without an email client? I can't think of a worse way to introduce your first tablet to the world. This whole pairing-your-blackberry-to-the-tablet-to-send-email...