The best replacement for flip is bloggie.

The best alternatives to flip are rated as following:
★★★★★  bloggie
★★★★★  kodak
★★★★★  flop
★★  kodak zi8
★★  ti
★★  charge
★★  thirsties
★★  vado
★★  flip 2
★  econobum
★  sony bloggie
★  zi8
★  lutz
★  grovia
★  slim thug
★  playsport
★  ti fight
★  flick off
★  flip summon
★  gdiapers
★  t i
★  thirsties duo wrap
★  duo
★  freetime
★  camcorder
★  grovia diapers
★  jbl charge
★  flippant
★  kodak playtouch
★  bloggie touch
  beats pill
  sony bloggie touch
  non flip mattresses
  kodak playsport
  aiptek
  ipod touch
  kodak zx3
  paul wall
  esg
  bumgenius
  lil flex
  jambox
  bumgenius 4.0
  gdiaper
  non flip mattress

Your alternative for flip is not listed? Suggest!
Speaking about flip, one probably shouldn't forget about prefold.

Other search terms related to flip and their ratings are:
★★★★★ prefold
★★ lea
You have in mind a companion for flip and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of flip in all years. Click on graph for more.
flip
bloggie
kodak