Version 7.10 of Ubuntu Linux was released today. I downloaded the desktop 386 version and burned the ISO to a CD.
The live version booted quickly on my Macintrash using rEFIt (a bootloader and maintenance toolkit for the Extensible Firmware Interface). Ubuntu configured my Marvell Yukon gigabit Ethernet adapter (as eth0) and my DHCP server gave it an address, but the Atheros wi-fi chipset didn’t show up as eth1.