definitely appreciating the oleophobic coating! had a front screen protector on for a couple days... but just couldn't stand it anymore... the screen just got smudged something fierce just looking at it... so off it came, call it... a "moment of clarity"
left the rear protector on, since i care more about having the back protected from scratches (and i never lay my phone down face first) than smudging... but for the front, it had to go... MUCH better now!
but yeah, it's a risk too, since it WILL wear off after a while... had a 3GS for 6 months and by the end, the smudges were harder to clear off... but can't make use of it if it's covered up, so ...
i wonder if there are solutions out there - kind of like Rain X - for "re-treating" the screen, to make it oleophobic again... might not be as durable as the factory coating, but maybe there's something out there to use once the original coating wears off... ????