Thought I would open this up for some discussion.
What do you think has been the best development in Fly Fishing gear over the past 10 years?
In my opinion it has been the advances in what I would call “mid-priced” reels. In my opinion, for somewhere in the $90-$130 price range, one can purchase a reel with features and quality that would have cost $250 or more just a few years ago.
What do you think?
As I sit here and think about less expensive reels being imported from China I wouldn’t consider that the best thing to happen to Fly Fishing or the US worker or the country.
While synthectic tying materials have been around longer than 10 years many of today’s synthectic tying materials are a reel boom to the sport.
But if I had to pick just one it would be the explosion of information rather than a specific fly fishing product. Internet chat rooms have taken off within the last 10 years and this access to information is powerful. Think about learning tying patterns or fishing techniques in the past. You would wait until one of your favorite fishing mags would publish and article and then we would read and try to copy.
These days many times you can post a specific question to the originator of the technique and get a detailed explaination with the ability to ask a follow up question.
Rick
The ‘rediscovery’ of fiberglass as a rod material
Zippers in waders… Oh what a relief it is!
Floating lines that actualy float for more than an hour and do not need to be dressed every 3rd cast. Oh yes and breathable waders, though I still prefer to wet wade when it is warm enough.
All the best.
Mike
I’ll second the Internet as a source of information about fly fishing and tying. I don’t think there is anything on the gear side that can compare to the advances in this area.
The resurgence of bamboo fly rods.
bobbyg
Although more than 10 years old, I’ll go with breathable waders. I tend to fish more often when I’m comfortable.
I vote for the Delorme Atlas Gazetteer. Although it might be more than ten years old, I hardly fish without it. I can fish just fine with gear from ten or more years ago.
I will see your Delorme, which I own too and raise you a GPS. I have found more places to fish this past year by using this in conjunction with some wonderful kiss and tell books. 
I think it’s interesting that the words “rediscovery” and “resurgance” have already popped up so many times in this thread. The longer I fish, the more I find myself appreciating the old at least as much if not more than the newest. Having said that, I’d have to say that, for me anyway, line technology is the one place I think the most and most practical improvement has been made in the last ten years. New coatings, purpose specific tapers, and increased durability all combine to make the lines of the last few years a vast improvement over what went before no matter what price category your budget puts you in.
Fly Anglers On Line.
The networking of the fraternity of fly fishers has opened more doors and spawned untold numbers of friendships. If I want to go fish the Adirondacks, all I have to do is ask. If someone in New York wants to fish New Zealand, all they have to do is ask. How awesome is that?
I think I’ll go tie a fly. A fly that I learned how to tie at FAOL.
aquastealth & Vibram
FAOL is 12, ergo would not qualify in the last 10 years…
But thanks for the vote of confidence. 
I am going to have to agree with Lotech. All those guys and girls who are accessible via www.faol.com are pretty great.
My first thought was google earth and what is now bing maps which I have used to find new fishing holes around the Georgia countryside.
Some credit should be given big head golf clubs, Viagra, Cials which keep old men occupied doing things other than fishing and leaving more room and fish for the rest of us.
The adoption of the Internet in 3rd world nations.
Although the Net has been around lots of countries are new to the net.
This allows all kinds of information to reach the common person.
Regardless of race, religion, or political beliefs.
Information is power. As long as the information is accurate and complete this has to be a good thing in the long run.
The only problem is the US infrastructure isn’t even a close 3rd anymore.
We lag way behind lots of other countries. 
Next time you are in for a laugh…
Go to google maps and ask for driving directions from your house to London.
Read it…
SCRUB THAT they fixed it…
Used to tell you to drive to the east coast and swim…
definitely fiberglass fly rods, both new rods (Great Bay, McFarland, Steffen, T.L. Johnson, et al) and old glass getting its due.
i dont think “resurgance” or “rediscovery” has anything to do with “best developments” in fly fishing/tying.
I have seen more women get into fly fishing over the past 10 years then in the years previous; this can only be a good thing. Waders seem to fit the gals better.