I got a second email from Spring Design:
We resolved many bugs at this update. Some big updates are listed as follows:
1. Fixed the system hang bug.
2. Enabled to transfer DRM books from Adobe Digital Edition (PC) to Alex.
3. Enabled Font size for PDF books.
4. Revised User Manual to use ePub format,which is good for reading.
5. Removed Dictionary temporarily because of system space is not enough and will put it back in next Android 1.6 update.
BTW, the first was from the VP of marketing. The second was from someone on the development team.