This article is misleading on several accounts (as others of its type often are). - Yes, initial payload size matters. But where's the true comparison about what each app is loading? How are the features and the UX? Would a power user be satisfied with Fastmail (e.g. search, filters, etc.)? (It looks nice, but none of this was discussed at all). - The disparate email count comparison is excused way too quickly. Have…
Oh, and GMail has definitely grown a lot more heavyweight. I've had to switch to the classic HTML interface to get anything done in GMail on my 3 watt 1GHz laptop. Turning off chat helped, but not nearly enough.