PHP Framework and FormBuilder crosslinks

Hi all, I have some doubts: 1) Which PHP Frameworks do you know that use DB_DataObject and in general, PEAR packages to common tasks?. I only know Seagull, but I want to know if there are more, to compare them and pick one for my next project. 2) I use FormBuilder with crosslinks. When form successfully submits and it is freezed, crosslinks appear as [ ], but selected ones aren't checked [x]. This only affects to display terms, not to database. I mean that FormBuilder works well, but crosslinks when form is freezed doesn't look as they should. 3) Some people don't use QuickForm and/or FormBuilder because their lack of performance (sometimes). Is there a way to cache them? For example, FormBuilder checks for last modification date of DataObject, and if needed, re-generates QuickForm object and caches it, if not, it reads all needed things from cache. Thanks, Rodrigo Alvarez.