U.S. stock index futures edged higher on Friday ahead of key data expected to show new orders for durable goods rose slightly.

* At the G20 summit, world leaders pledged to keep emergency economic supports in place until a robust recovery takes hold and work together when the time comes to remove them, according to a draft communique obtained by Reuters on Friday.

* Investors will eye U.S. durable goods data at 8:30 a.m. EDT. A poll of 75 economists forecast new orders rose 0.5 percent in August after surging 5.1 percent in July.

* The final Reuters/University of Michigan reading of consumer sentiment for September is expected at 9:55 a.m. EDT. A Reuters poll of economists showed the gauge is expected to rise to 70.3 from a reading of 65.7 in August.

* U.S. new home sales data is due at 10 a.m. EDT. Economists looked for sales increasing to an annual rate of 440,000 units in August from 433,000 in July, which was the highest in 10 months.

* S&P 500 futures rose 3.3 points and were above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures gained 26 points and Nasdaq 100 futures added 3 points.

* Shares in Research In Motion Ltd fell more than 12 percent in premarket trading after the BlackBerry maker reported second-quarter revenues that missed estimates on Thursday and gave a disappointing outlook.

* Unilever NV agreed to pay $1.87 billion for Sara Lee Corp's personal care brands. Sara Lee said it is still looking to sell the rest of its household goods business and will launch a $1 billion share buyback program.

* KB Home is due to release third-quarter results, with analysts expecting a loss of 73 cents per share compared with a loss of $1.87 cents a year ago.

* The Group of 20 rich and developing countries, holding a two-day summit in Pittsburgh, will aim to implement new rules by the end of 2012 to improve bank capital and discourage excessive leverage.

* Also, the world's central banks said Thursday they would scale back infusions of U.S. dollars into their banking systems.

* U.S. stocks fell on Thursday on weak housing data and investor worries that the officials may curb economic stimulus efforts too soon.

(Reporting by Rodrigo Campos; editing by Jeffrey Benkoe)