Cook's big challenge: Sustaining Apple's growth

On Tuesday, new Apple CEO Tim Cook is expected to help unveil Apple's latest iPhone at its first big event since co-founder Steve Jobs stepped aside in August.<div class="feedflare"> <a href="http://rss.cnn.com/~ff/rss/cnn_tech?a=JZnhnRSPq6M:LH1hng1n7ak:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/rss/cnn_tech?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_tech?a=JZnhnRSPq6M:LH1hng1n7ak:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/rss/cnn_tech?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_tech?a=JZnhnRSPq6M:LH1hng1n7ak:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/rss/cnn_tech?i=JZnhnRSPq6M:LH1hng1n7ak:V_sGLiPBpWU" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_tech?a=JZnhnRSPq6M:LH1hng1n7ak:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/rss/cnn_tech?d=qj6IDK7rITs" border="0"></img></a> <a href="http://rss.cnn.com/~ff/rss/cnn_tech?a=JZnhnRSPq6M:LH1hng1n7ak:gIN9vFwOqvQ"><img src="http://feeds.feedburner.com/~ff/rss/cnn_tech?i=JZnhnRSPq6M:LH1hng1n7ak:gIN9vFwOqvQ" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/rss/cnn_tech/~4/JZnhnRSPq6M" height="1" width="1"/> [More]