NEW YORK (TheStreet) --Apple (AAPL) - Get Report dropped 0.12% in pre-market trading Monday. The company announced that the latest version of its mobile operating system for the iPad, iPhone and iPod touch is now available.

iOS 4.2 arrives after rumors that WiFi problems caused a delay in the operating system's release.

SAP

(SAP) - Get Report

will release mobile versions of its business software for

Research in Motion's

(RIMM)

PlayBook tablet when the device is available early next year, the company told the

Wall Street Journal

.

Shares of SAP were down 0.82% in pre-market trading Monday to $49.56.

Google

(GOOG) - Get Report

may be close to buying popular daily deals site

Groupon

for around $2.5 billion, according to the

New York Post

. The deal may happen sometime next month, the report said.

Shares of Google fell 0.51% to $587.82 in pre-market trading Monday.

Yahoo!

(YHOO)

has teamed up with independent app store

GetJar

to integrate apps into its search engine results, the company announced Friday. GetJar also struck a deal with

AT&T

(T) - Get Report

earlier this month to have its app library available on the carrier's AppCenter store.

Shares of Yahoo fell 0.42% to $16.50 in pre-market trading Monday.

News Corp

(NWSA) - Get Report

plans to develop a newspaper for the iPad called

The Daily

, according to a report from

Fox Business News

.

The newspaper app

is expected to launch before the end of the year.

--Written by Olivia Oran in New York.

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