The first 750 (Arthur, G3) CPU-based Macs from Apple are expected to ship in November (as reported in MacWEEK).
Meanwhile, POWERtools has just announced a new line of clones, called X-Factor, that come with the 750 chip - available now.
Apple is changing the way Macs get distributed to its reseller channel. For details and a mostly positive view of what this means, check out this MacWEEK article. For a more critical assessment, read this article from news.com.