I'm from Italy,
I was using an ASUS A620 'till december then I bought a new ASUS A730 (not the wifi one), got to say that pay 400€ for this beauty (in the pack there was also the USB host cable) was the best decision.
I did not spend my whole time on games, the only ones that I play are all designed for PPC (I love to play with the pen) so cant see any problem with that, I use it as MP3 player on the way for work and also at home while working and got to say that the speaker is awesome.. try, as I do, to work a lot on excel files and you will understand what a bigger and so bright screen can mean...
I'm not interested in judge which PPC is better, I use to buy any kind of electronic component following my needs and not "what would be better" that because I'm the only one that can judge his needs..
To be honest it seems to me more logic to say "X50 or A730" then "Loox or A730" because I would only change my PPC for something with a dedicated 3D processor and following my previous experiences with different brends I'll wait for next ASUS models.. is just my point of view!
To the italian guy:
If your choice will be for the ASUS and you need info feel free to contact me
I experienced some problems with my old A620 and got to say that in Italy ASUS support works really good!