The Saleae software does not currently support real time view, and it is not possible to access data in real time from the devices using either of the APIs.
If you would like to see this feature, please vote for it on the Saleae ideas voting page here: http://ideas.saleae.com/forums/214303-saleae-ideas/suggestions/5639316-add-real-time-view
Our first commitment is to continuing to improve the stability and user experience of our current software. Once the Logic software is fully polished, we will return to adding new features.
trello ID: 56252d79bd4fd93fbd05c305