I noticed the other day few tiny white spots on the glass towards the lower right corner of my wifi model one year and a half old. I can't figure what they are and what caused them, i take extreme care of my ipad.
Do you feel like these spots are inside or outside of the glass? They could be dead pixels. Here is the link to a dead pixel test to help you decide if that is what it is. http://iphonedpt.awardspace.com
Unfortunately, if it is a dead pixel, unless you got Apple Care+ you will probably have to pay to have your screen replaced. If you explain to Apple the situation they might replace it for free.