Jip, as you mentioned, you can move it if you feel it will get more traffic. Leave a shadow here too.
Yeah. I am interested to see what will happen. We have Oracle on a few applications here at work. I don't mind it but I only have to query it every once in a while. Once my job is set up with the right query I don't have to deal with it. We are probalby 85% Microsoft anyway.
To my knowledge there is no MySQL or Solaris. Only use Java for 3rd party / vendor applications (we don't write anything in Java).
However, my other "job"... we are reliant on MySQL.