Jennifer Fritzsche with Wells Fargo, who has a Market Perform rating on shares of Nokia (NOK), bills the company’s appearance at the Mobile World Congress, which kicked off today in Barcelona, Spain, as “not quite significant but steps in the right direction.”

The “incremental” news that Nokia delivered today was its fourth phone based on Microsoft’s (MSFT) “Windows Phone” operating system, the Lumia 610, an affordable market “targeted at the value-conscious younger audience,” costing just €189 [about $253]” that will come out in the second quarter. Nokia also said its “Lumia 900″ will get an upgrade in speed, supporting “HSPA+” in some markets as well as the “Long Term Evolution” standard.

But the biggest announcement, writes Fritzsche, was the 808 “PureView,” which runs the old stuff, Nokia’s “Symbian” operating environment. it will cost €450, while come out in May, and has a 41-megapixel (sic) camera sensor and something called “oversampling” to aid photography.

Among other announcements, the company is adding to its “Asha” line of feature phones, and will make a beta of Skype available for download to Windows Phone users.

Writes Fritzsche, “There were no major announcements, but NOK launched several devices that should continue to drive the turnaround in its competitive positioning and a number of ecosystem improvements that could be a starting point to real competitive differentiation of the Nokia/Windows platform.”

Nokia shares today are

Previously: NOK: Rightsizing Networks Unit; No Microsoft Deal Planned, February 27th, 2012.