@ Mando: Great ideas! If the data is already there in XML, there are possibilities in abundance.
Regarding data protection and an "open" database: I don't see a bigger problem with that than with selling PDFs, that can easily be given around.
I'm very much in favor of a digital solution, so I'd like to list what we got till now:
- A PDF that could (a) be sold seperately, including updates, or (b) that comes bundled with any major magic-related product.
- An online database that could (a) be open for anyone or (b) for anyone with a login (that could again come seperately or with another product). This database would allow PDF export. This solution requires some work on a frontend, but saves a lot of work later (instead of new compendia, ICE could simply update the database).
- An offline database (i.e., downloadable software) that would include the material. Anyone owning the software could make PDFs locally, and possibly edit the data (houserules). Requires the most work, because it needs a stable program. Mando seems to have some useful experiences with that option.
- If XML data exists, ICE could make that data available (XML or database; possibly with a login, allowing people who bought some code or book) and let the fans contribute to the service. Several people here would be capable (at least in ability, time's a another matter) of providing a frontend, sorting mechanisms, PDF export. Judging by what happens in the open source scene, the product would evolve more and more (which might mean it's not totally easy to use in the beginning, I admit).
Additionally, I just noted I perceive 2 possible perspectives on the Compendium: It can either be a complete collection of anything magic-related (including professions, casting styles and the like), which would mean it's some work to (a) make and especially (b) update. It's also more of a product "of it's own" instead of a game helper.
Alternatively, it is just a spell list, sorted alphabetically (please, don't sort by sphere or similar!). This is very little work compared to the option above, especially concerning updates, and would be more like a utility (and wouldn't be all that useful without magic rules, so having that distributed somewhat openly should not spoil interest for the magic products).
IMHO, the former option justifies a product of it's own, even in print, although the problem of getting out-dated remains. The second would be a great service, and would make more sense as a PDF that get's updated one way or the other.
Regards!