Real time data feed of stocks and futures

General
1

what are the service provide for real time data feed of stocks and futures in terms of the following.

  1. Reliability (Data reliability as well as system reliability)
  2. Zero delay.
  3. Compatibility (With Charting software’s like Amibroker, Metastock etc)
  4. Backfill
  5. Customer support

Names are welcome

2

Check out neotrade, http://www.neotradeanalytics.com/, using them for a while and happy with their support. Much better than competition at similar pricing.