Further to my earlier comments, I seem to have stirred up a frenzy of decision-making in the office today, and as a result I am now able give you full pricing and upgrade details for SQL Prompt 3.
You can find the announcement at:
http://www.red-gate.com/MessageBoard/viewtopic.php?t=2815
However, the short version is that SQL Prompt 3 will cost $195, with an introductory $99 offer for pre-orders placed on or before September 28th. In addition the discounts for those who purchased the original PromptSQL are as described in my previous post.
Hope that helps.
Many thanks,