But while advertised speeds often grab consumers' attention, wireless engineers note that consumers rarely see the top performance in everyday use.

WSJ: Higher-Speed Wi-Fi? Not So Fast

It is also important to note that like all wireless services, the more customers using wireless broadband within a cell or cell sector (cell sites are normally divided into three equal sectors of 120-degree coverage each), the slower the network will appear to those using it.

FORBES: Everything You Need To Know About 4G Wireless In 2011

It promises there will be a note-taking function, speedier wireless connections and the elimination of the counting-pages delay.

WSJ: A Review of the Irex E-reader