UPDATE 3-Nokia to tackle Apple with leaner services push

* To merge services delivery channels, cut number of projects

* Sees scale helping Ovi Store battle vs Apple

* Cuts U.S. operator-billing from store launch

* To cut up to 360 jobs in services, 90 elsewhere

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By Tarmo Virki, European technology correspondent

MONACO, April 28 (Reuters) - Nokia Oyj (NOK1V.HE: Quote, Profile, Research) said on Tuesday it would combine its different Internet services tighter together as the world's top cellphone maker tackles Apple's (AAPL.O: Quote, Profile, Research) hugely succesful App Store.

To cope with slowing phone demand Nokia is building a new business from mobile Internet services -- like games or maps -- but is scaling back separate investment plans due to the slowdown, and focusing on merging the delivery of services.

"We are moving into Ovi, into a platform strategy," Tero Ojanpera, head of the entertainment and communities operations at Nokia, told Reuters in an interview on the sidelines of the Nokia developer summit in Monaco. Ovi is Nokia's much-anticipated online store which is set to launch in May.