If you recall our article "iPhone 4 Review: Why We Cannot Recommend One", we said (a) we loved everything about the i4 but (b) were concerned about the antenna issues.
Several days later, Apple had their big press conference explaining the issue, and offering a "mea culpa" in the form of free phone bumpers to any i4 owners who wanted one.
Now — after a month of daily use — we can say that the "death grip" is not a dealbreaker.
Go ahead and get the iPhone 4; it's the best damn phone on the market. Period.
If you're still concerned, just listen to this song: