Hardware site AnandTech has posted an extensive review of the fifth generation AirPort Extreme base station and the fourth generation Time Capsule, and while you may not want to read the entire 9-page review, it's worth popping to the end, where author Brian Klug explains how an internal hardware change (from Marvell to Broadcom) gives these new models improved throughput and range. follow link
Time for a Fetch Refresh?
In the Fetch FTP client, if you see a time stamp like "As of 6/19/10 2:29 PM" above the file list, that means that Fetch is re-using a file list it downloaded earlier. Click the swooshing-arrow refresh button (located beside the time stamp) to refresh the list.
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New AirPort Extreme and Time Capsule Feature Improved Throughput
Check out the Take Control ebooks that expand on the topic in this article: