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I didn't understand why they wanted to port LaTeX to the iPad when they first wrote about it:

I'm sorry, but your logic here is just terrible. Your argument is that "I don't want an iPad" and "The iPad isn't a full computer" implies that "Nobody needs/wants LaTeX on an iPad". This doesn't logically follow and is instead a self-centered presumption that because you don't want something, nobody else does.

They want LaTeX on their iPads, I would like LaTeX on my iPad, and I have met other people who also want LaTeX on their iPads. When I'm taking notes, LaTeX works well for me (I'm not claiming for everyone) when I need to type up equations. I use my iPad with a bluetooth keyboard to take notes (the iPad's battery life (amongst other things) makes it very attractive for this application). I'd like to be able to render my equations to make sure I didn't make a transcription error.

That would indeed be a bad argument. I'm glad I didn't try to make it. The iPad is a superb browsing/reading device. But sometimes people insist on using the wrong tool for the job. You want LaTeX on your iPad. But you don't have it and won't get it, because it's not a computer. That was my point. You want to take notes and use LaTeX? Why didn't you buy a used Thinkpad for $100 from ebay and install linux? That's what I did. I don't have the excellent iPad screen (or the battery life - I certainly see your point there), but I don't have to say "I wish this could run LaTeX / Gimp / gcc / python / ....".

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