If, by "dawn of a new Linux era" you mean greater mainstream adoption of Linux, I think you are mistaken. For several reasons, I don't think the 2.6 kernel will have any effect whatsoever on Linux desktop adoption. In order for that to proceed at a faster rate, distributions need higher quality application support and better system management utilities.
If I want to change my monitor's refresh rate in X and the XF86Config utility craps out on me, I'm left with editing the /etc/X11/XF86Config file by hand and entering ugly things like "modelines". This is unacceptable for 95% of the population that might want to use Linux.
Installing Linux distributions has gotten progressively easier over the years, and RH9 has got to be one of the slickest installs I've seen yet. But there are still problems. If your hardware isn't installed properly by the install utility, that's tough. Getting them to work requires Herculean efforts that involve finding and compiling custom kernels and "insmoding" kernel modules. This too is an unacceptable way to configure devices. Kudzu helps, but only to a point.
And why aren't all distributions shipping with DevFS enabled now? RH9 leaves about 1200 device nodes listed in the /dev directory, all but 20 of them inoperable on any system. Want to use your USB device you just plugged in? Good luck figuring out which device it is! I had to run "dmesg" to see what device my USB mass storage device the driver decided to use... and then I had to manually insert a line in /etc/fstab to get it to mount properly.
Look, I agree that things are progressing. But don't delude yourself that cool features in the Kernel will make Linux gain ground in the mainstream. Linus already mentioned this about two years ago, when he stated that the Linux kernel was as good as it needed to be for mainstream support. What he implied by this statement was that the distributions are what need the most work.
The fact that you can read and write NTFS partitions is great... if it's truly easy to mount them (my usb drive wasn't). ALSA sound drivers are great too, if they're installed automatically and work correctly (my GameTheater XP didn't).
Last but not least... we can't let our eyes glaze over in euphoria over 2.6 if our X drivers continue in the state they're in much longer. Nvidia's drivers cause my system to hang far too often, and ATI's drivers are almost a joke. BOTH of them are way too hard to install (although ATI once had a nice utility that did all the hard work for you... but this seems to be gone now).