All-in-one-Qype-Suite "Qypifys" your Blog! Add tooltip-links to Qype Places, geotag Post & pimp sidebar with 3 nice Qype Widgets
No - well for the tooltip function you don't, but for the button and review version you should have one...
Yes, the place results are cached for 24 hours to keep up blog preformance.
Yes of course - it's all CSS, feel free to overwrite the defaults
Well, as of now, the Qype API only allows reading, to there's no (easy) chance to add content by now :-(
Yes, but by now, german and english are only supported - feel free to translate it!
Yes, the plugin comes with both themes and can be selected via the Admin Menu.