arscii: Call me when Lightroom supports layers. Until that time it's being deliberately crippled by Adobe to protect Photoshop revenues.
NO Layers for Lightroom Please - It is not a pixel editing program.
Jan_Shim: Would be nice if Adobe releases a version without its cataloging engine. Not every photographer, pro or otherwise, want or need to catalog their pictures. I come from Corel Paintshop Pro, ACDsee camp where you would just browse to the folder containing the images and edit away. Paintshop Pro saves image thumbs in each folder so loading those hundreds or even a thousand images is really fast - very effective without a cataloging engine hogging computing resources or risk database corruption. The PSP way has been very effective unfortunately Corel still hasn't released a 64-bit version so I'm contemplating LR5 especially now it has a one-stop photo editing capability.
Simple - if you don't want the cataloguing feature use other software and forget LR ever existed. There is plenty available.To request LR without a Catalogue suggests to me you don't "GET" LR