So I tried to upgrade from 7201 to 7229 and I got a black and then went to grey screen, so I had to rollback to 7201, upgrade was a nogo for me, so then this morning I did a fresh install of 7229 and to my surprise it installed in less then 22 minutes. So if the RTM will install in less them 30 minutes I am going to get it as soon as it is out. the install time gets better with every new release. 
My Computer
- Computer Manufacturer/Model Number
- HP G60-230US
- OS
- Windows 7 Ultimate X64
- CPU
- Intel Pentium Dual-Core T4200 @ 2.0 GHz
- Memory
- 4GB's
- Graphics Card(s)
- Mobile Intel 45 Express
- Sound Card
- Conexant High Definition SmartAudio 221
- Monitor(s) Displays
- 16"
- Screen Resolution
- 1366X768
- Hard Drives
- 320GB
- Mouse
- Logitech M305
- Internet Speed
- Cable