Amazon has launched its new beta iPhone portal. An option to use the new interface appears when navigating to amazon.com on the iPhone. [via TUAW] A new rumor has surfaced on a BlackBerry enthusiast site claiming that AT&T is intentionally limiting GPS functionality in the upcoming BlackBerry 8820 to avoid the handset clashing with the iPhone. Social networking site Multiply has also launched a new iPhone-optimized version of its site. The new…
