The HP-37s scientific calculator?

[JimP]

Perhaps it would be a natural successor to the 27s as well -- thus it could have all of the features the 27s has as well as all those of the 35s. (EG the TVM functions). But unlike the 27s it should have the RPN option. A better display is a must (perhaps 4-line), and the ability to transfer from PC to the calculator.

How about a solar power option too?

Either way it would have to be at least as functional and as inexpensive as the Casio 991EX, the TI-36Pro, and the top end Sharp -- but RPN is a must.

Or do we have something like that already -- or in the works -- the WP43s type machine? Whose only knock is that it is incomplete (and probably will be rather expensive!)