"The functionality is also not yet active, perhaps because Apple is yet to secure the final deal believed to be in negotiation with Nuance, and as such the server-side processing is unlikely to be ready. Sources have suggested that Assistant support is only initially intended for the smaller iOS devices, iPhone and iPod touch, though iPad support is a possibility," writes 's Chris Davies.

There are plenty of places to turn to learn about the pros and cons of iOS 5.

PCWorld posted a popular story titled "" and PCWorld's Tony Bradley just finished a "30 Days With the iPad" series in which he looked at what iOS 5 and iCloud bring to the table and the on the capabilities of the iPad as a PC replacement.

Developers can download iOS 5 beta 5 . To see the full change log for iOS 5 Beta 5, visit .