brilliant gallery should be able to split large picasa galleries into pages. If for example a picasa gallery has 50 pics the option to split them onto a defined number of pages would be cool (f.e. 10 pages a 5 pics or 5 pages a 10 pics). Nevertheless Lightbox-functionality must not be broken. Via Lightbox you should be able to navigate through the whole page-split-album, not only the corresponding page.

I think this explained functionality in conjunction with cooliris would make an absolute killer-gallery.