When the iPhone 3GS came out, battery life tanked on my 3G. They fixed that, after some period, only to break the reporting in the firmware. Now the device thinks it's dead after a few hours. Replace the battery, same life time. At this point, I'll never expect and apple device to last longer than a year and therefore will not buy one.

Additionally, OSX is no linux replacement. Bash is completely different except for cd, rm, and ls.