It would be interesting to see someone run for office and essentially let their constituents vote on everything, the elected person essentially acting as their representative. Using technology it could be very effective. Or it could massively backfire. Maybe it would be easier to just survey people and see what they think, mostly basing legislative votes on that.
Here in the US, the concept of representatives was formed before any of our modern forms of communication came about. You could argue we need much less politicians, like say half of the House (the part of congress based on population) because its much easier to communicate on things.