I used a google spreadsheet that Curtis made for the linked class in my regular class today, but instead of using the acer tablets, I used our department HP tablet computers (a windows os computer). For an in-class data submission, the spreadsheet worked better on the tablets than on the computer. On the tablets, the cells containing a formula were locked so students couldn't accidentally enter a number in the wrong cell.
In the linked class with 12 students, it was crazy having students moving back and forth between instructions, spreadsheets, and calculators. The added chaos of 12 more students and devices in a typical class of 24 is daunting. I wonder if we can ever go completely paperless?