I'd love to be able to specify a font size (either in pt or pixels), rather than freehand resizing of the text box. It makes it difficult to match type sizes in multiple locations.
It would also be very convenient to have word wrapping within text boxes, either hard wrapping or soft wrapping. Currently it's one line only, and setting a multi-line block of type requires carefully resizing the text boxes to get the right font size, aligning their edges as necessary, and accounting for consistent line spacing.