Mac OS X 10.7 Appearing in Web Logs, Dev Release at WWDC?

As we reported earlier, it's no surprise that Apple is actively working on Mac OS X 10.7. Bug reports from the early builds were spotted in November and as early as December Mac OS X 10.7 signatures appeared in web logs from Apple-owned IP addresses. More spottings have been since reported, and we've found Mac OS X 10.7 signatures in our own web logs with increasing frequency since October.

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_7; en-us) AppleWebKit/532.7.1 (KHTM
L, like Gecko) Version/4.1 Safari/532.7.3

Apple has said nothing of the next major version of Mac OS X, though John Gruber had said he had heard that Mac OS X 10.7 would be ready for developer release by WWDC this June.

Rumored features that never made it into Mac OS X 10.6 Snow Leopard such as the Marble interface revamp may make their way into 10.7.