Have you guys heard of "Managed Flash Technology"? It's a software (originally developed for linux) that sits between a hardware flash device (or array of ssds) and any filesystem. Basically, it makes random-writes into sequential writes. It costs money, so Open-E would have to license it, but it could allow open-e to compete with the big boys when it comes to random write IOPS using just regular SSDs.

Open-E DSS ssd-edition.

http://managedflash.com/home/index.htm