Re: compiz-fusion widget layer
well it displays a lawer of widgets on your screen (the default binding is f9 i believ) this'll work with screenlets, if you mark them as widgets, other than that i haven't seen any other use for it...
Desktop: eMachines T5046 w/ intel pentium 3.07 Ghz 1.5Gb RAM, nvidia geForce 8400 w/ 512Mb RAM, running dual-boot XP and ubuntu 9.04
Laptop: HP 6735s w/ aMD turion x2 64 2.0Ghz, 2GB RAM, ATI Radeon HD 3200, with dual-boot Vista and Jaunty