Great review
I also using an Eten G500 and I am very happy with it.
Very snappy and stable device.
Just to complete your review :
- Next ROM will add FM radio option
(this option is already released in ROM 97 for French and German device and working great

)
- I was also missing the New menu, until I found a small app called "WM5 New Menu". With this you can add a New Menu and, better even then in WM2003, you can customise it to match your needs.
http://forum.xda-developers.com/viewtopic.php?t=41968
(You have to be a registered user to download files)
- Even Better : Try the Smartkey programm. It's add a long press function on the two soft keys :
"Start Menu" and "ok/Close".
With this you can do everything with one hand.
As a bonus you can now scroll folder or pages with the volume buttons.
to adjust volume simply go back to today or to phone apps.
http://forum.xda-developers.com/viewtopic.php?t=41060
(Here too you have to be a registered user to download files)
There are a lot of talented and dedicated individuals at Xda Developpers, and it's not necessary to own a HTC device to take advantage of it
Finally I use VITO Taskswitcher to swith quickly between application. I mapped it to Record Button.
I mapped the remaining button to Today and GPS.
With this setup I do everything with one hand
