kidsat

They already do this and it's called Shipt. There's a delivery charge (about $9.99) or yearly membership available.

http://en.wikipedia.org/wiki/Sosumi

After selecting "more results", the subsequent page shows "infinite results" after scrolling to the bottom. I don't understand why it doesn't do this on the first page.

BSD doesn't support SOCK_SEQPACKET on unix domain sockets. The app exits early.

I've written such a script to hit the website directly. That "API" is far flakier than the basic auth version.

HTTP port 80 traffic from Android app:

  GET /v1/checkins?geolat=34.2842613&geolong=-118.2471837&geohacc=112.0 HTTP/1.1
  User-Agent: com.joelapenna.foursquared:2010080500
  Host: api.foursquare.com
  Connection: Keep-Alive
  Authorization: Basic dXNlckBleGFtcGxlLmNvbTpwYXNzd29yZA==

  POST /v1/checkin.json HTTP/1.1
  Host: api.foursquare.com
  User-Agent: Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2 like Mac OS X; en-us)
  Content-Type: application/x-www-form-urlencoded
  Authorization: Basic dXNlckBleGFtcGxlLmNvbTpwYXNzd29yZA==
  Accept-Encoding: gzip
  Accept: */*
  Accept-Language: en-us
  Content-Length: 250
  Connection: keep-alive

I've found these mixtapes by Moneypenny quite enjoyable:

http://www.urchicago.com/spandexxxmixtape

http://brh.numbera.com/software/jsonview/