Eh.. um.. I've had a E200 since the day it was released. :-) I was (actually, I still am) looking for another to resell. Got a good deal on the one I upgraded (I bought it off ebay), the seller included a 128mb SD too.
I haven't upgraded my one though, I've been reading mixed reviewes about the upgrade, it doesn't sound too impressive, besides the battery life extention. It seems to add a few issues with the SD card, issues I don't need. I recharge my phone every night when it syncs and I already have (and might I ad) love cleartype anyway and frankly, besides the initial problems I had with installing bluetooth at home, never had any issues with that either. Sure it's a little unstable, but given that the bluetooth range is so laughable anyway, it's not like you can use it for much. So I don't know, don't think it's worth reloading all my apps and changing all the reg keys for...
Anyway, this has nothing to do with this thread, so I'll stop. Kudos to the SIM unlocker masterminds.