iMessage has brought full Instant Messaging to the mobile platform. There is no excuse for typing like a twat any longer. I either completely ignore SMS-lingo, or feign confusion, and make the twat type 10x more to clarify his meaning, than if he had just typed correctly in the first place. Basic dog training. ;-)
To answer the OP question: the Apple Wireless Keyboard, while no Filco Blue, is a pretty good compromise. Even ripster agrees that it's one of the best keyboards delivered with a computer. It links fine with iPads, and is very light. AWK and an iPad can go all day long on a single charge (and can be recharged by high-power USB) too, which cannot be said of a laptop, which poops out after just a couple of hours or requires a power brick.
TapatalkHD utterly sucks though. It crashes all the time, particularly when I'm trying to look at Lego photos. But basic Tapatalk seems to work fairly well, plus it loads faster and is easier to read than using Safari. They won't give me my money back for the crappy version, so I'm looking for a less assaholic company to get my BBS reader from. Any suggestions?
-- typed on an iPad using an AWK, because I care about spelling and grammar.
PS: I recall seeing an iDevice adaptor that would allow you to plug in a USB keyboard. That, plus an iPad, plus a HHKB2 would be a nice portable computing platform!