When using the percentTextBox control, it would be nice if there was an option to have the control allow the editing of the data as a percent.  Currently it will show the percent as a decimal value (e.g. 50% would show .5)  For our users, it's more intuitive for them to enter the percent instead of the decimal value.  Kendo would need to do the conversion to/from percent and decimal behind the scenes so that the data is saved properly on the underlying model as a decimal value.