Complex sentence: Developers Daisuke Aoyama and Michael Zoon continued FreeNAS 7 development as the NAS4Free project while and iXsystems rewrote FreeNAS with a new architecture based on FreeBSD 8.1, releasing FreeNAS 8 Beta in November 2010.
Split into simpler sentences: Developers Daisuke Aoyama and Michael Zoon continued developing FreeNAS 7 as the NAS4Free project. Meanwhile iXsystems rewrote FreeNAS with a new architecture based on FreeBSD 8.1, releasing FreeNAS 8 Beta in November 2010.