Last week I finalized the behavior and this week we implemented this feature in our apps. We did not invest a lot on the artwork like Polor but we have few ideas on how to make this and couple of other features rich.
Usually you don’t get a visual cue about these features. You can argue that these are nice-to-have and users can totally live without but they are great candidates to add a bit viral-ness to the app.
Pull-to-refresh isn’t the only socially-transmitted functionality. In years past, it’s how I’ve seen people learn about drag-and-drop in applications. It’s how they learn about special keys, like F5 for refresh or F1 for help. A lot of functionality has been transmitted from one person to the next, socially.
We have a term for that now - Socially-Transmitted Functionality.
