The new Bing Maps beta is beautiful, and slow.  That’s the verdict from Ars Technica. Check the whole thing out right here.  (As an aside, ol’ Bingster refuses to change the city where I live.  Just like the preview version of MSN.com.  It simply won’t change even though I type in the zip and hit “Save.”  I have no idea why.  If I used their sites, I guess I’d care more.)