Documents to Go for iPhone

Dataviz announced the availability of its mobile applications, Documents to Go for the iPhone with $5 and $10 (to add enterprise friendliness) versions. I'm pleased with the price. I used to buy this for my Palm Pilot for around $50. The current version edits MS Word documents and the promised next version will edit Excel sheets. However, I'm still not sure how useful this is without a portable keyboard. To be honest, I rarely used it in my Palm days and may not bother now. Ultimately, the $5 price point will probably pull me in.