Hi A little while ago there was some discussion on a variety of keyboards for the Iphone 4. Can I verify that blu tooth on all of them is good, not sluggish especially when writing. We can use cursor keys and specific keys to get better navigation of screens etc. Also does the blu tooth keyboard work with blu tooth headphones. FFinally, what is the best for tactile use - I like the idea of the one which folds, but does it have the same features, especially with Apple keys for voiceover? Thanks. Gordon McFarlane