Accessories

updated 12/5/2012 

Keyboard case for iPadMetal 
These are the aluminum keyboards that double as screen protectors. The new Logitech Ultrathin keyboard is definitely the king of this category. It "snaps" magnetically to the iPad, just like iPad's smart covers, and thus works with both iPad2 and iPad3.

The older ones (this Logitech one and numerous knock-offs such as this one by MiniSuit) are okay. The keys are well-spaced and have a good solid feel. Some people are bothered by the hard edge (which falls under the palms) and the fact that these keyboards protect only the touchscreen side of the iPad.

Leather-ish folio 
Leather-ish folio cases with keyboards tend to be bulky and not as sleek Apple-like looking as the metal ones, but they are good at protecting the iPad all around. An added bonus is that since they are not as tightly fitting as the plastic or metal cases, they can fit either iPads 2 or 3. My favorite in this category is the Kensington KeyFolio Pro 2  -- the keys are well-spaced, the keyboard is removable from the case and there is an elastic loop for a stylus. The minuses are that it is bulky and fairly ugly, if the coolness factor matters to you. The better looking and thinner one is Belkin Bluetooth Keyboard Folio -- keyboard is good, but it is not removable. My only complaint is that folding this case is a 6-step process that requires instructions! However, it is not hard after you've done it a few times.

Hard plastic
The plastic keyboard cases with rotating stands are not great (Trent makes one, along with many other knockoffs).

Separate keyboardIf you use keyboard sporadically and don't want it as part of the iPad case, get a protective case and a separate keyboard.
Another advantage is that a separate keyboard can be used with multiple devices (e.g. your tablet, your phone, etc).

The one I carry with me is the ZAGGkeys FLEX -- it is very solid, rechargeable and the keys feel excellent.

If you absolutely have to have something smaller, Verbatim Mobile Folding Keyboard  is folds in two, has well-spaced keys, but uses alkaline batteries that do not last long.
Stylus - for iPad, Nexus, and most other tablets or smartphonesForget all the styli that have a black rubbery or silicone-looking tips. The ones have a fiber mesh as their tip are far superior. Although it sounds like it might scratch the screen, it doesn't.

iFaraday seems to be the first to have created this type, but everyone else jumped on the wagon quickly. The best inexpensive ones that I've tried (and use daily) are the retractable ones from Trent, which run $11 for a pair at Amazon. Caveat -- these are fairly short (4.5"). If you like your pens longer, thicker and heavier (like a serious fancy pen) go with iFaraday's RxII ($26).
Protective case for iPadAn inexpensive but good quality "folio" case for iPad 2 is Neewer Rotating Stand Case (black, brown). It provides multiple viewing angles, in both portrait and landscape position. The links above are for iPad 2; there is a different version for iPad 3.

AM amCase (another link) folio has a more versatile fit -- it should fit any of the iPads. Another similar one is CrazyOnDigital.
A/VHeadset with Microphone for language classes that picks up far less background noise than others in this price range: Connectland CL-CM-502

Splitter that you need in order to put the headset's two jacks in to the single iPad headphone jack: Belkin Speaker and Headphone Splitter

Audio apps: we've liked Pocket WavePad and AudioVox.  There seem to be lots of other well-rated ones.