On loan from my brother-in-law is his ZAGGfolio keyboard and cover for the iPad 2. For all of it's advantages, typing out long blocks of text on the iPad virtual keyboard is tedious at best. For writing lengthy emails and performing tasks such as blogging, attempting to do so via the iPad virtual keyboard simply is not practical.
I've had my eye on a ZAGG solution for awhile, but wasn't completely sold on the solution and was not ready to commit without some first-hand experience with the product. After having used the ZAGGfolio, off and on, for roughly a week, I'm fairly impressed with the product overall. The keyboard has a high quality feel to it, and offers a solid tactile response to the keystroke. The key spacing and layout is quite natural to anyone comfortable touch-typing on a smaller keyboard, such as that which might be present on a sub-compact or netbook computer. The responsiveness of the keyboard to screen interaction is really quite impressive. I don't have a great deal of experience with Bluetooth keyboards, though I have used a number of different WiFi keyboards and found them to suffer somewhat from lag or latency. Battery life seems to be quite good. The integrated stand feature is designed solely for landscape orientation - there isn't a good way to leverage the stand feature in a portrait orientation. However, with a redesigned latch system, support for portrait orientation could have been a possibility.
I have found the that latching mechanism leaves a bit to be desired. One must position and align the cover against the keyboard properly in order to put the device into a latched position. There may have been a better way to accomplish this, such as through the use of a magnetic closure system. Also, after having grown so accustomed to carrying the iPad in its natural state, I can't quite get over the extra bulk and weight of the ZAGGfolio. For most who do use a shell or one of the bulkier rubberized covers, the ZAGG would not likely seem an issue.
Overall, I'm quite pleased with the product. Like nearly every iPad cover (keyboard or not), the cost continues to amaze me, and the ZAGGfolio is no exception. At approximately $100, I would strongly consider buying used on eBay, and likely wouldn't pay more than $65 to $75 for it...