Neoticker can do it too. They support a number of realtime data services, and you can import/export data from/too txt-, csv-, xls-files and some other formats too.
Many of them dont have futures quotes.... Does anyone know of a charting service that charts futures in real time such as natural gas from the NYMEX??? thatd be great
You are confusing things here. Neoticker is software for charting (amongst many other things), but you will need a realtime data-service like eSignal, Realtick, Tenfore or simmilar firms to feed it data and chart-history. There is a list on compatible data-vendors and brokers on their website. Neoticker itself does not provide realtime data.
You can also import data from your own text-files for offline-analysis (ive done it, it works).