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Just loaded 2.0 on the iPad, and loaded my full Rails app into Textastic.

Quick Glance results are:

Rename/copy/move are tremendous time/tap savers.

Inconsolata font looks nice, but is just a tad too small for me (sticking with Luxi for now).

Read-only mode should be great for code browsing where you don't want an errant tap or swipe to alter any code (been there and done that already).

Find and replace will be quite useful as well.

If you are a developer, or just someone who reads code (I know a few compulsive Tech Support and QA folks like that), are an iPad user, and don't currently own this app, get it!

If you are a current Textastic user, upgrade now!

Alexander, if you're ever in the Washington DC area (USA), I owe you a beer, perhaps at the local Gordon Biersch...