Incredibly useful!

I have a number of workload tracking spreadsheets on my Jornada 820 (yeah, ancient, but it has a nearly full-sized keyboard), and my newest laptop doesnt allow me to sync them (wrong connectors). MarinerCalc has saved me from losing the ability to have them in a portable format, and anything that keeps me from having to build the whole thing again from scratch is a winner with me! It has a few quirks Im still getting used to (have to manually resize the height of a cell before word-wrap will display right), but it is well worth the price.

Penemuel about Mariner Calc Spreadsheet for iPhone