I purchased Textastic for the iPad recently and it has already paid for itself in terms of allowing me to code on go. I love that it supports custom TextMate bundles, since I work with some pretty obscure languages for embedded systems. The local hierarchical file system with WebDAV support and links to remote content is wonderful! It is just what I was looking for and I have recommended it to others at work who have been sitting on the fence about buying a tablet due to their apparent limitations. Apple should thank you for coming out with such a capable editor!
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