I was looking for something solid state that my kids could watch films on the move on after a succession of portable DVD players. I have been pleasantly surprised with the Archos. Picture quality is good and through headphones, the sound is not bad. The touch screen is probably 5/10 if you compare to an iPhone, but then it's different technology and at GBP150 compared to 400, you get what you pay for. Email is good and internet is not bad for looking up the odd thing, although you would not want to spend too much time on too many sites. Battery life is ok. You can watch at least one two hour film before you start to loose power. I bought a car adapter as well but this does not appear to be able to charge the Archos battery, just makes it last a little longer. I think this is because it is only rated 1amp, whereas the mains charger is 1.5amp, but I am not expert of electrics!
If you want a 7inch PMP and have not got 450 quid to spend on a iPad, this little tablet is just the thing.