With this release they've finally made it possible to fit it inside a standard CD (about 695MB for the 32-bit version) and more ARM architecture support has been added (via different disk images). Below are few of the new updates in the 11.10 Beta 2 version
*. Gnome 3 has been updated to the latest beta 3.1.9 which is on its way to the official Gnome Shell 3.2 released. A quick remainder for those of you who've been just woken up from your hibernation sleep ;-), remember, Gnome 3 is well supported in Ubuntu but it is not included in the default CD disk image. But you can install it via the online Ubuntu repositories nonetheless.
*. Includes the Kernel 3.0.4 version.
*. Comes with the Mozilla Firefox 7.0 beta 6.
*. And Thunderbird 7.0 beta 3.
*. Synaptic is removed (as most knows) but also the default video editor PiTiVi has also been removed.
*. LightDM with a new theme.
*. Banshee 2.2.0.
*. Shotwell 0.11.1.
These are the usual main apps to remind and as usual the Ubuntu Software Center is also updated with some bug fixes, etc as well. All the other official Ubuntu derivatives such as Kubuntu, Xubuntu, Lubuntu, etc have also released their Beta 2 version simultaneous to this release too.
As mentioned, from now, since the CD disk image fits into a 700MB CD, now you can download the beta 2 and use it as a LiveCD rather than the USB version with some of the previous "alpha and beta" versions.
If interested, you can get it from this official release page. Good luck.