This event doesn't interest me any. Really the only 10km Pokemon I need is Mareep, but its not worth spending money on incubators. This is a good event for new players though. Maybe if I needed tons of Pokemon.
Won't be going outside much this next week since its going to be 90 degrees until thursday. Wish they would have an Electric, Dragon, Steel or Fighting event though, have only caught about 15 dragon types so far, doesn't help that there's only 4 dragon type Pokemon in the first 2 gens and 1 is an item evolution.
To the above poster, 1 is no and 2 is yes. Eggs don't change once you get them meaning they will always hatch the Pokemon inside as is, there was a Pichu/ash hat event recently and you could hatch the egg a year after the event ended and it would still be wearing the hat.