I have installed an application of ours that uses Firebird 1.5
Embedded on a tablet pc running Windows XP embedded.

So far, fingers crossed touch wood and all that, it works well.

Again, I have not installed the full server, have not played around
with the service manager or anything else, I simply put the empty
database on the PC, ran our application and it was able to synchronise
data with its next tier, and otherwise operate normally with reading
information from the database and storing information back to it.

Used the standard firebird embedded engine kit for win32.

Just thought some folk would be interested to know, and let me know if
there are any experiments you would like me to run on it (if I can pry
it out of the hands of sales).

Adam