Nice mix. Not being from the UK, I don't recognise all of these tracks. If pop radio sounded like this megamix, it might be more tolerable. Only prob with mix is the constant beat / vocal sample that carries up to about 18 mins in. Otherwise, nice pop mix.

This mix was made from list of UK Top 100 somwhere in august. It was partly mixed then, but since i was very busy, i finished it only at the end of october. So some tracks are already out of tops. :) interesting you say its pop mix. Some of people say there are too much of r'n'b :) although there are from both genres.
Yes there is constant beat, but this is how i like it.
Its a matter of taste i think.