After lots of helpful feedback from beta testers and Hacker News, my typing tutor app “Quick Brown Frog” is live and open for business!

Some of the things I changed in response to feedback include:

• price reduction from $29.95 -> $9.95

• support both Google Checkout and Paypal options for payment

• stats reporting (WPM/Accuracy improvement over time)

• report on frequently mis-typed keys after practice lessons

• allow automatic single/double spacing after end of sentences (very frequently requested)

• implemented crawlable Ajax links for SEO

• plus many bug fixes for cross-browser compatibility

I consider this an MVP-level release, which means that it still needs lots of work and polish (in particular, the look-and-feel of the UI).

The important thing is to get it out there, and start getting feedback from actual customers. Absent that, I’d just be spinning my wheels.