Another addition to inkscape between 0.45.1 and the upcoming 0.46 release is the touch selection ability of the select tool. By holding down ALT and clicking and dragging, the selector tool selects everything that passes through the red selection path. Below is a screen video of the new feature in action, on a 10 x 10 set of square objects.
Check out the notes about touch selection on the Inkscape Wiki
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