The Puppy 2.15CE (Community Edition) is the result of collaboration of a team of Puppy enthusiasts. It is built upon version 2.14 but with many enhancements. In particular the guys have worked on an improved user-interface and nice out-of-the box first impression. They have also developed some "SFS" files that add OpenOffice, web and graphics applications -- SFS files are "combo packs" of applications that can be installed and uninstalled with a few clicks.
The release announcement is on the Community News page:http://www.puppylinux.org/wikka/LatestNews
The file 'puppy-215CE-Final.iso' is 131MB and is available from our primary host ibiblio.org:http://distro.ibiblio.org/pub/linux/distributions/puppylinux/
Ibiblio also has mirrors, that are often much faster, see links here:http://www.puppyos.com/download/downpage.htm
Various Puppy enthusiasts are providing downloads. See the Forum thread here:http://www.murga-linux.com/puppy/viewtopic.php?t=17032
Note, if you are unable to download (perhaps being on dialup) and want to purchase a CD, I won't be processing orders for another 5-6 days as I am preparing a new CD (and having a bit of an Easter break!).