You can see how the feature is working on the web service.
TechCrunch says that users will be able to edit the statuses from the web, Android an iOS along with the same feature for the comments. You will just have to select the ‘Edit post’ button for the purpose.
Your revisions and original post will still be viewable if friends check your post’s edit history, though. For comments, hovering over or tapping a post will reveal a pencil icon on the right you can click to start editing.
Don’t have the official Facebook app for some weird reason or a resolution? It’s free to download.
As usual we will keep you updated with the latest news from Facebook, and we will inform you just when the new update comes to iOS… Stay tuned…