Hello all,

Resolver One is a new spreadsheet program that is of particular
interest to those interested in spreadsheet programmability. Version
1.0 has *just* been released, and is free for personal/non-commercial
use.

Spreadsheets are expressed as IronPython programs (although data and
formulae are editable in the grid as usual - they are translated in
real time and the spreadsheet calculated in the background with the
results synced back to the grid).

You can program the spreadsheet, with full access to the spreadsheet
objects, in the code pane (IDE) that is part of the main interface.
You can use .NET and Python libraries natively within your
spreadsheet.

http://www.resolversystems.com
http://www.resolverhacks.net

Programming best practises can be brought to the world of
spreadsheets!

* Maintainability
* Refactoring
* Unit testing

You can also export spreadsheets as programs for use within the IT
system.

Michael Foord
(Resolver developer!)
http://www.manning.com/foord