Former Research In Motion co-chief executive Jim Balsillie sought a radical shift in strategy before he stepped down, Reuters reported on Friday.

Following a huge week that saw Apple’s stock climb above $630 amid a fresh round of analyst upgrades , one analyst isn’t sold on the notion that smooth sailing is assured in the immediate future for the world’s most valuable company . BTIG Research analyst Walter Piecyk thinks Apple is set to report blowout earnings for the second fiscal quarter — he sees Apple earning $10.75 per share on sales of $40 billion in the quarter, versus Wall Street’s consensus of $9.81 and $36 billion — but he downgraded Apple’s stock to Neutral from Buy, noting that it’s time for investors to “take a breather.” Read on for more