Phew, it seems that the restrictions on the usage of Oracle XE I blogged about in my previous entry pertain to the BETA edition only.
Word is that the production release is scheduled for the end of februari. This will be accompanied with a license that will explicitly allow the usage in a production environment. Also, this license will do this for an unlimited amount of time.
I received the information regarding the licensing from Tom Kyte. Apart from being a genuine Oracle RDBMS Guru, he's also host to the Oracle XE Discussion forum and the author of the Ask Tom Oracle Magazine columns. In short - I'm very much inclined to trust this info.
Thanks again Tom for clearing it up. It puts me at ease for sure!