I agree that curries have definitely improved in quality, although most Indian people I know wouldn't consider most restaurant curry to be very authentic when compared to the real thing eaten on the subcontinent. Things like boneless chicken, onion bhajis and even the good old chicken tikka masala were all adapted for us fussy westerners. I also think that the behaviour of many sit in diners in Indian restaurants has improved considerably over the past 15 years. Happily I rarely hear the shouts of "Oi, Gungadin" etc from ratted hard lads trying to impress themselves with their ready wit.