So can i expect JR to come with telemetry radio for surface contents like Spektru DX3S series

All low end futaba car radios have shifted to FHSS ie 3PL, 4PL etc. The higher end ones like the 4PK-S still use the FASST tech.

We have noticed that FHSS has much better range than the Spectrum DX3r/s etc as well as fewer glitches.

So i guess its a good move to move to FHSS.

I don't think the JR DSMX is a FHSS technology if it was so then DSM2 would not have been compatible with the DSMX it clearly says DSM2 transmitters are forward compatible with DSMX receivers and DSMX transmitters are backward compatible with the DSM2 receivers. And because DSM2 and DSMX share the same wideband DSSS foundation, all Spektrum users will enjoy superior range, speed and precision whether they're using DSM2 equipment, DSMX equipment or a combination of both.

The Spektrum DSM2,  DSMX technology & the FHSS are the two different types of 2.4 ghz technology.

From what I understood, DSMX is FHSS ("frequency agile DSSS",  seems to be the right name).  The compatibility should not confuse you. The transmission is DSMX (FHSS) only when the receiver is DSMX, otherwise it falls back to DSM2. 

Guess you did not go through the links here on what the issue was with DSM2, and how DSMX tries to fix it via hopping (i.e. being "frequency agile").

http://www.rcindia.org/radios-and-receivers/jr-going-completely-fhss-parting-with-spektrum-dsm-dsss/msg50434/#msg50434

Yeah Anwar Bhai, that's right, We can call DSMX as narrow FHSS, or wide DSSS.

Compatibility means that DSM2 receiver would be able to understand DSMX transmitters but with out all the advantages of DSMX, that implies receivers which are designed to work on a narrow spectrum would not be able to give you all the benefits of wider spectrum.

But I think with DSMx it's closer cousin of FAAST or FHSS (it's all marketing Jargon, you know)

Hope my posts are making some sense

All the Best
Akshay

Finally an idiot has arrived among a bunch of guys discussing something going aboove my head. 
What's the difference between FHSS, FAASST, DSM, DSSS and specturm? Can I use the usual HK's 6Ch Tx with the Rx of the FHSS HK 6Ch? Can I use a futaba radio with a spektrum Rx? 

Vineet

"Search"... it is all here, though not in one/same thread.