Hi, I thoght this could fit in the app2sd thread at first, but this is not about moving apps. Even though it is about the space required on the phone memory. My Galaxy Ace has only 18mb left, and I get 'insufficient space' message often when I try to update apps or install new ones. I don't even have that many installed! Where did the memory go? 1. Anyway, I would like to know what I can delete from the phone memroy. 2. and how to delete some stock apps that won't have a "remove" icon in the home page, or which have a greyed out Unintall button so I cannot click it. 3. I wonder if you know what causes memory to fill up. I have all cache cleared and all. Does each update, for instance, keep a backup copy, and they pile up? What uses up my phone memory? Thanks in advance. PS: Samsung Galaxy Ace running a ROOTED stock FroYo. Has Root Explorer and Titanium Backup.