I have been wanting a PC like this for years, I even found a couple of them (x86 based) on AliExpress, but they were too large for my needs. Suggested improvem

I have been wanting a PC like this for years, I even found a couple of them (x86 based) on AliExpress, but they were too large for my needs. Suggested improvements for Pi 400: 1. Add a couple more keys to the layout: PGUP, PGDOWN, HOME, END - these are needed for seamless web browsing without a mouse. 2. A small touch pad would be great to have. 3. A MIPI camera interface and two more USB ports. 4. LiPO battery.