Many people don’t know much about Idaho except "famous potatoes." But, since you are here, you would probably like to know more.
Idaho borders six states and one Canadian province. The states of Washington and Oregon are to the west, Nevada and Utah are to the south, and Montana and Wyoming are to the east. The province of British Columbia, to the north, also shares a border with Idaho. The landscape is rugged with some of the largest unspoiled natural areas in the United States. It is a Rocky Mountain state with abundant natural resources and scenic areas. The state has snow-capped mountain ranges, rapids, vast lakes and steep canyons. Idaho's highest point is Borah Peak, 12,662 ft. Idaho's lowest point, 745 ft 
is in Lewiston.
As of 2005, Idaho has an estimated population of 1,429,096, which is an increase of 10.4%, since the year 2000. From 2004 to 2005, Idaho grew the third-fastest, surpassed only by Nevada and Arizona.
Important industries in Idaho are food processing, lumber and wood products, machinery, chemical products, paper products, electronics manufacturing, silver and other mining, and tourism.
Today, the largest industry in Idaho is the science and technology sector. It accounts for over 25% of the State's total revenue and 70%+ of the State's exports (in dollars). Idaho's industrial economy is growing, with high-tech products leading the way. 
Boise is the State capital, and it's largest city. As of 2008, Boise's population was 211,473, with the metropolitan area estimated to have 635,450 inhabitants, making it the most populous metropolitan area in Idaho.
Idaho is the only state that was likely named as the result of a hoax (the so called "Idahoax") although this is disputed. In the early 1860s, when the United States Congress was considering organizing a new territory in the Rocky Mountains, eccentric lobbyist George M. Willing suggested the name "Idaho," which he claimed was derived from a Shoshone language term meaning "the sun comes from the mountains" or "gem of the mountains." Willing later claimed that he had made up the name himself.
Chief Joseph Seltice, of the Coeur d'Alene Tribal Nation, posits another possible origin of the name. In his history of the tribe, Saga of the Coeur d'Alene Indians, he writes:
Some sources claim that the name "Idaho" comes from an Indian word, "Ee-dah-how," meaning "Gem of the Mountains." As the Coeur d'Alenes understood the word "Idaho," it would be more correctly pronounced "Ah-d'Hoo." It means "greetings by surprise," indicating friendship, but surprise.
The first syllable conveys to the mind, "All are welcome, from wherever you come; but keep the friendly peace. We welcome you with out-stretched arms, and this entitles us to permanent friendship."
The last syllable is a surprise and exclamation point. The expression means that all are welcome, "though we are surprised to see so many different strangers. The first dawn of day welcomes you as the sun rises." This expression was used by many of the Coeur d'Alenes on the Bitterroot Mountains to greet all who come.
So to all who read these words: "Welcome, with open arms! We're just surprised that there are so many of you!"
Whichever part of this magnificent state you choose to live, you’ll find breathtaking scenery, fun things to do and helpful, friendly people. You’ll also find a place that’s unspoiled, unhurried and unassuming. I hope you'll discover a home in Idaho!
Area, 83,557 sq mi (216,413 sq km).
Pop. (2000) 1,293,953, a 28.5% increase since the 1990 census.
Capital and largest city, Boise.
Motto, Esto Perpetua [It Is Perpetual].
State bird, mountain bluebird.
State flower, syringa.
State tree, white pine.
Wikipedia