There is a surge of startups trying to address the management of smartphones in enterprise networks, which is surely going to be a massive issue. If you think about how the number of smart, networked mobile devices are proliferating, and how employees use them for both work and private purposes, you can imagine this is a big management headache. That's the opportunity that Silicon Valley startup MobileIron is going after. I spoke to MobileIron back to CTIA and have since done some more research on the company. The company last August raised $11 million in Series B funding from top investors including Norwest Venture Partners, Sequoia Capital, and Storm Ventures. The company is led by CEO Bob Tinker, who was a former business development manager for Cisco's wireless business units. He was also formerly vice president of business development at Airespace, which was acquired by Cisco in 2005.

Welcome to Tuesday's news brew, where we wrap up the world's business news. It's a busy day, from Baklava Bailouts to Twitter Tweets. The markets are selling off, from stocks to commodities, though the general stock market selloff is quite subdued. Let's start with Twitter, which we covered in an earlier post, but has plenty of opinions around the horn:

• Want to catch up on the latest Twitter "monetization" announcement? Start by reading Jeremiah Owyang's excellent analysis (Web Strategy).
• Twitter has launched Ads -- where better to read about that then Ad Age?
• John Battelle has some thoughts (Searchblog). They're not fully formed though -- he says they are "developing."
• Twitter to roll out advertising (WSJ).
• Mary Meeker is bullish. On Mobile. Big surprise there, eh?
• An Android "iPad killer" is on the way. Will that boost Adobe?
• Greece is trying to lay off the Baklava Bailout by selling more debt (Bloomberg). Isn't funny how the answer to bad debt is always more debt?
• Citigroup took at $15B loss on "liquidity puts," according to Congressional testimony. Sounds like they should have been called "lack of liquidity puts."
• The U.S. trade gap widened more than expected (BusinessWeek).
• Chinese growth may accelerate (BusinessWeek). That's right. They can grow even faster.
• Oil sells off as supplies balloon (Reuters)
• Here's a cool map of U.S. trade sanctions around the globe (VisualEconomics.com)

Below find the summary of our Diagnostics and Tools Portfolio as published on Raygent.com and Genetic Engineering News (www.genengnews.com) on Feb.2, 2009. We are currently reviewing four new stocks: Genomic Health, Genoptix,  MicroFluidics, and Neogen. All of these stocks are “holds”.  Immucor (BLUD) has support at 20 and is now in the portfolio.

		3/29/10 $ P	Original Rec	Price	% Return
Abaxis	ABAX	26.8	2/2/09	15	79
Genomic Health	GHDH
Genoptix	GXDX
GenProbe	GPRO	48	2/2/09	45	7
Hologic	HOLX		2/2/09	12	52
Illumina	ILMN	39	2/2/09	29	35
Immucor	BLUD		4/5/10	20	0
Inverness	IMA	39.7	2/2/09	25	37
MicroFluidics	MFLU
NeoGen	NEOG
Qiagen	QGEN	$23.10	3/15/10	21.5	12
Sequenom	SQNM	6.1	11/18/09	3.75	37
SeraCare	SRLS	4	11/18/09	2.75	81

Well, they did it: Twitter has announced a business model. It's called advertising. Heard of it before? They are calling it "Promoted Tweets." What's interesting is that the social media company (can we now call them a social marketing company?) has figured out a way to weave sponsored tweets into the fabric of the system: That is users, can essentially vote about which ads stay or go. Sponsored Tweets will be bought and plugged into the system, clearly marked as sponsored. This will happen via the search page, where sponsors will bid for search terms, a la Google. Users can treat them like regular tweets -- for example, retweet them -- or ignore them. Posts that get sufficiently ignored will presumably go away, according to Twitter. The initial sponsors -- Twitter calls then "innovative advertising partners" -- will include Best Buy, Bravo, Red Bull Sony Pictures, Starbucks, and Virgin America. I am quickly imagining the Twitter-scape littered with Red Bull-fueled promotion artists.