Let's have a glance at all the stuff that the India-US deals are likely to yield now & in the foreseeable future.
Air Force
ALREADY ORDERED/DELIVERED
Boeing C-17A Globemaster-III (10)
Lockheed C-130J Super Hercules (6)
Boeing AH-64E Apache Guardian (22)
Boeing CH-47F Chinook (15)
General Electric F404 turbofan for Tejas Mk-1
General Electric F414 turbofan for Tejas Mk-2
AGM-84 Harpoon-II ALCMs
CBU-105 sensor-fuzed munitions
FUTURE ORDERS
Lockheed C-130J Super Hercules (6 more); upto 40 or so possible if MTA is cancelled
Boeing AH-64E Apache Guardian (upto 60)
Boeing CH-47F Chinook (upto 45)
advanced GE F414 version for AMCA (?)
Navy
ALREADY ORDERED/DELIVERED
Boeing P-8I Neptune (8)
Sikorsky S-70B-2 Sea Hawk (16)
Jalashwa-class LPD (1)
UGM-84 Harpoon-II SLCMs, AGM-84 Harpoon-II ALCMs
General Electric F404 for NLCA Mk-1
General Electric F414 for NLCA Mk-2
FUTURE ORDERS
Boeing P-8I Neptune (upto 26 possible)
Sikorsky S-70B-2 Sea Hawk (upto 48 or more)
Sikorsky CH-148 Cyclone (upto 32)
more air-launched Harpoons
advanced GE F414 version for N-AMCA (?)
EMALS for IAC-2 carrier
Army
FUTURE ORDERS
M-777 howitzer (145; upto 500 or so required)
FGM-148 Javelin (40 to 60 thousand rounds; licensed production)
SMAW-2NE (around 40 thousand rounds or more; licensed production)
joint development of next-gen seekers & warheads for above manportable launchers
M-1126 Stryker (around 300 for light-tank requirement;?)
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Members, please add anything I missed out;
It might seem like much when you first look at it, but compared to the deals with Russia & Israel, it really isn't that high. Ofcourse the defence relationship between India & US today is very valuable (deal prices) and quantifiable compared to only 10 years ago...but if US really wants to challenge Russia as the principle weapons-tech provider, they have a long, long way to go. And their system+congress won't allow them to go halfway.
In short, deals with US will develop at their own pace. There is comparison with Russia size-wise, or even with Israel when it comes to joint-development and technology-sharing.