US Government Accountability Office
GAO Report:
See Pgs. 69-70 for F-22, Pgs. 71-72 for F-35
The GAO Report on major defense acquisitions is prepared for the US Congress and the various Congressional Defense Committees, thereby providing guidance as to the program and cost statuses. I am sure an update will be provided as the budget process begins later this summer.
http://www.gao.gov/assets/660/653379.pdf
In addition:
Institute For Defense Analysis Report:
See Pg. ES-13 F-35 Areas of Weakness
See Pg. ES-25 F-35 General Info.
http://www.dtic.mil/dtic/tr/fulltext/u2/a519883.pdf
There is a McKinsey Defense report that basically says the same as the above report. They also mention the fact the F-15 and F-16 development programs took 6 years each to complete, the F-22 development program, 20 years and the F-35 Development program 12 years so far but perhaps on track to equal the F-22 program.
TD