2.2 inch LCD Display featuring VGA Resolution
i4u writes "Casio announces a LCD display with the world's highest resolution.
The 2.2 inch LCD display features VGA resolution. The Casio innovation has 368ppi (pixels per inch). The power consumption and size is the same as with current QVGA (320x240) displays. Meaning current mobile phone models could directly be upgraded with a VGA display. So we could very soon see Mobile phones with VGA resolution on 2.2 inch displays.
Samsung had the World's highest resolution with 300ppi in early August. Casio took now the lead.
More details in Casio Press-Release (Japanese)."
I can see this being beneficial for pictures, video, and the like, but not UI elements. Phone OSes are going to need to build in scalable UIs and offer tools for their developers to do the same or we won't be able to use the things.
Per Square Mile, a blog about density
You have something against sharper text and graphics? We're talking about a 300 ppi display, which matches the resolution of first-generation laser printers. Text will be readable at as little as 6 points (nearly 25 pixels!), and a web page just might be displayed decently.
What's the downside?