As long as they Eleutherodactylus leoni or some other endengered species.

I was being serious. I bid 300€ - later increasing to 550€ - under the understanding that Neo900 would be a drop-in replacement for N900. My current cases won't accommodate a thicker device and I doubt I can buy a fitting one on eBay.

The whole project started as, "N900 with more RAM and faster CPU". Would getting back to that without all the extra features not get us back to the drop-in replacement goal?