Latest version 5.0.0, released May 2010

IMHO, Puppy is the best of the lightweight distros. It works well with little hassle.

Puppy boots from the CD and runs fast in RAM memory freeing the CD boot drive for other uses, and this enables the os to run on diskless thin work stations.
Data, hardware and communication settings can be saved to a HD, CD/DVD, flash, or floppy.

Puppylinux can be used to access sensitive sites, such as Internet banking, with minimal risk. A Puppy disc stores the login and system hardware info and is only used to log into a specific site, the required information is processed and printed. The Puppy system is then closed down. Ideal for Windows and paranoid Linux users. The Copyleft Puppy CDs are left open to enable data and settings to be saved to the boot disc.

Puppy will run on old hardware and has the light-weight apps needed for daily use. 32Mb RAM seems to be the lower limit.
Puppy can be installed various removable media, and to the HDD, but grub needs to be configured.

Ready to order?