Something from InfoSync World:

"When comparing the Nokia N900 to Apple's iPhone, there are clearly many similarities. However, there's one big difference, at least up until recently: The iPhone exists to ensure that Apple's services and software will reach a portable audience also in the future, while the Nokia N900 will exist to pave the way for the LTE era. We seriously hope that Vodafone, Verizon Wireless and other carriers that are planning to roll out LTE early will embrace Maemo soon, as that would give 4G services a flying start."

EDIT: Added link to what LTE is.