Thanks to the iPhone 4, we are all getting diplomas in antenna design. Anandtech has its usual comprehensive review of the iPhone 4 (highly recommended if you set aside the time for it). The takeaway? "At the end of the day, Apple should add an insulative coating to the stainless steel band, or subsidize bumper cases. It's that simple."
For more on the grip of death, this other analysis comes highly recommended.
Finally, if you want to read more reviews of the iPhone 4, Andy Ihnatko has a 6,000 word review out as well.
Note: To get the latest about the iPhone and iPad in Singapore, follow @imerlion on Twitter!