Mobile analytics firm Flurry announced estimates that Verizon Wireless sold more than 250,000 Motorola Droids in the new Android smartphone’s first week on the market.

Flurry arrived at its numbers by tracking iPhone and Android application usage. To estimate first week sales totals for the myTouch 3G, Droid and iPhone 3GS, Flurry detected new handsets within its system, and then made adjustments to account for varying levels of Flurry application penetration by handset. 

Flurry estimates that the myTouch 3G sold 60,000 units in its first week, and the iPhone 3GS sold 1.6 million units. In a release today, Peter Farago, vice president of marketing for Flurry, wrote that it’s important to note that Apple simultaneously released the new iPhone in six countries, whereas the Droid and myTouch were initially launched only in the United States.

If the numbers are accurate, 250,000 units sold means good things for both Verizon and Motorola. Verizon has been desperately seeking an iPhone competitor in an effort to improve ARPU, and Motorola has bet the future of its ailing handset division on the Android platform.

Motorola’s first Android handset, the Motorola CLIQ, is currently available on T-Mobile USA for $199 with a two-year contract. The Droid is available for the same price on Verizon.