Now X is designed for:
Intel-based computers
2G of RAM
Mac OS X 10.5 Leopard

Because Now X is designed to take advantage of newer technologies, we recommend an Intel processor with two gigabytes of RAM. Minimum system requirements are PPC-based computers with 1G of RAM. Now X runs on both Mac OS X 10.4 Tiger and Mac OS 10.5 Leopard.

Public beta for Windows XP and Vista is in development and will have similar hardware requirements.
Mark Gilicinski
Product Management - Now Software Inc. - [][/url]
Now X demo movies -