Hi, I just generated the first real ISO for Lubuntu Lucid, available for testing. Don't forget that it's build with Ubuntu Lucid (10.04) which is still in Alpha state of development, so same warnings : "Pre-releases of Lucid are *not* encouraged for anyone needing a stable system or anyone who is not comfortable running into occasional, even frequent breakage. They are, however, recommended for Ubuntu developers and those who want to help in testing, reporting, and fixing bugs."
- LXDE packages up-to-date 
- LXDM - The new pcmanfm for testing (type "pcmanfm2" in a terminal)
- Many wallpapers and start icons from lxde forum, gnome-look or Leszek Lesner, to be able to switch easily and to test the result
- First customization with a splash screen from Leszek Lesner
- Installable with ubiquity (but upgrade from this Alpha 1 to next release is not guaranteed)
The ISO is called "Preview", because it's build with new features which will be part of the final release, and to encourage early testing. All this components are not yet part of the official repositories (work in progress). Also, if you want to propose a new application for the default installation, please test its behavior in this live-cd.
If you want to create a bootable usb system, please use the usb creator directly on Ubuntu. Please report any problem you have with it on this list or directly to me. Exception for pcmanfm2, it doesn't have all the features pcmanfm have, so no need to report it's incomplete :)
Download : http://people.ubuntu.com/~gilir/lubuntu-lucid-alpha1.iso
Regards, Julien Lavergne
 except LXmusic which was released recently and is not part of Lubuntu. Some packages are not yet in official repositories, but it's just a question of time.