Thanks. Yep you can change the loc but maybe I need to make it more obvious.
Better filtering is high on the priorities. As for the dates on the tweets. I'm only holding 6 days worth at the moment, I think I'll break them up by Today/Yesterday/Older in future. Otherwise it'll be too easy to miss new tweets maybe not at your exact location. Better linking or a summary pane is on the list as well.
Edit: I see that you can already change location. Well done!