I'm thinking of making the switch from iPhone to either the LG G2X or the soon to be released samsung galaxy s II. There are a two iPhone apps that I'm not sure I can live without. If I can find comparable apps then my decision would be much easier. That's were I need your guys' help; if you can give me your ideas as to what apps are the best in each area from the marketplace.

1. Numbers. The iWork spreadsheet app. I use it for invoicing my clients and it is indispensable. This one I need a great substitute for.

2. Nike+. For keeping track of my running. Not a deal breaker if there is no Nike+ app, but I like the way this one works