Amid PR fallout over iPhone 4, Apple scrambles press conference for Friday morning

It appears the hullabaloo over antenna problems with the iPhone 4 has caused Apple to finally react — that is, if you don’t consider deleting user comments to a customer forum “reacting” to the problem. On Wednesday evening, the company invited journalists to a news conference about its iPhone 4. The event takes place at 10 a.m. Pacific time on Friday, presumably at Apple headquarters in Cupertino, Calif. Apple hasn’t said who will speak at the event, reports The New York Ti…