I've updated my mobile Safari bookmarklet that applies modifications on Forrst main timelines (Latest Posts, Popular Posts, Promoted Posts) in order to make the items collapsible. Check my previous post to see a screenshot of the previous version.
The main change on this version is that collapsed items now display a small snippet of the post description, so you can have a better preview of what that item is about before clicking on it to expand.
I've also commented the userscripts to make the bookmarklet more readable (people should read and understand what it does before installing it).
Steps to add this functionallity on your browser:
create a new bookmark on your mobile safari and Save it (it can be of any page)
open this page, choose a collumn, select all code and Copy it
click on your bookmarks icon and Edit the bookmark you just added
Paste the code on the URL field. While there, edit the name as well
clicking on the like heart button collapses an expanded item
Please leave feedback about the mod, the bookmarklet code and even about the build system if you will (I plan to do a new post about the build system later when it becomes more mature, it is pretty alpha at the moment).