While iPhone 3G owners and would-be Windows Phone 7 buyers sit in the corner, quietly weeping over their lack of true multitasking, webOS and Symbian continue to point and laugh. In mid-January, a Palm Pre Plus was seen cackling with joy over its rivals' misfortune even as the device staggered under the weight of 50 simultaneous applications, and less than a week later, a Samsung Omnia HD performed