Jefferies & Co. analyst Peter Misek this morning seeks to allay fears of a gross profit erosion at Apple ( AAPL ), writing that “concerns on serious gross margin deterioration are overdone,” and reiterating a Buy rating and a $500 price target.

It’s official. Twitter has acquired internet advertising startup AdGrok , founder Matthew McEachen wrote in a blog post yesterday.

More commentary is coming in as regards Nokia’ s ( NOK ) cut in its outlook this morning , with bears warning that things will get worse before they get better. It’s not just the continued deterioration of the Symbian-based phones, but also some risk still in the company’s ability to make its partnership with Microsoft ( MSFT ) pay off: Jennifer Fritzsche, Wells Fargo: Reiterates a Market Weight rating on Nokia, while cutting her range of possible stock values to $6.90 to $7.40, from a prior $9 to $10. “While NOK has continued to say that 2011 is a transition year, we believe today’s announcement highlights how quickly the shift is occurring in the competitive environment

This is a busy week for chip and computer watchers, with the mammoth Computex trade show going on in Taiwan. For Qualcomm ( QCOM ) fans, it’s double the excitement with the company’s “ Uplinq ” conference in San Diego, taking place tomorrow and Thursday .

Mobile application discovery startup Appsfire closed a $3.6 million funding round from French investors Idinvest , according to a Gigaom report.

Mobile application discovery startup Appsfire closed a $3.6 million funding round from French investors Idinvest , according to a Gigaom report. Helping consumers easily find new applications that interest them is increasingly important to developers and businesses looking to distinguish their product from competitors And considering the multitude of apps emerging from Apple’s app store , the Android Marketplace and Amazon , there is a large opportunity to make money from an app discovery platform like Appsfire. Appsfire, which is available for both iOS and Android devices, seeks to provide some clarity to the sea of new apps.

Mobile application discovery startup Appsfire closed a $3.6 million funding round from French investors Idinvest , according to a Gigaom report. Helping consumers easily find new applications that interest them is increasingly important to developers and businesses looking to distinguish their product from competitors And considering the multitude of apps emerging from Apple’s app store , the Android Marketplace and Amazon , there is a large opportunity to make money from an app discovery platform like Appsfire

Apple made a pretty steep climb at the open following word CEO Jobs will head the company’s June 6th developer conference. Apple ( AAPL ) shares are getting a substantial lift here this morning from the announcement a little while ago that CEO Steve Jobs will help unveil “next generation software” during the company’s Worldwide Developer Conference on June 6th in San Francisco, starting at 10 am, Pacific. The stock is up $5.94, or 1.8%, at $343.35

Straight shot down for Nokia this morning; where’s the bottom? Shares of Nokia ( NOK ) are down 90 cents, or 11%, at $7.30 $1, or 12.2%, at $7.20 $1.28, or almost 16%, at $6.91 this morning after the company this morning warned the current quarter is tracking much worse than it had expected, andsaid it could no longer off a full-year forecast, citing “multiple factors” that are “negatively impacting” its business

Twitter may be in talks to acquire contextual keyword bidding platform AdGrok for less than $10 million, according to a TechCrunch report. While AdGrok aims to simplify search engine marketing campaigns , the platform could be adapted and used by Twitter to help monetize promoted and trending tweets. Purchasing AdGrok could alleviate some of the criticism many have had toward Twitter, which lags far behind the competition in developing a clear advertising strategy for the site.