The best replacement for ds is ds lite.

The best alternatives to ds are rated as following:
★★★★★  ds lite
★★★★★  psp
★★★★  dsi
★★★  3ds
★★  sony psp
★  nintendo ds lite
★  vita
★  2ds
★  ipod touch
★  lite
★  psp sales
★  ds xl
★  ds
★  dsi games
★  n64
  dsi xl
  gba
  vnds
  ds light
  dsi difference
  3ds sales
  itouch
  3ds games
  wii u
  3ds xl
  ps2 sales
  leapster
  wii
  gameboy advance
  nintendo dsi
  leappad
  sp
  3ds graphics
  psp review
  dasuquin
  rny
  gameboy
  cosamin asu
  psp homebrew
  psp which is better
  nintendo 3ds
  skb-ec
  dsi which is better
  game boy

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

Other search terms related to ds and their ratings are:
★★★★★ wifi
★★★★ pokemon x
★★★★ wpa
★★★ pokemon y
★★ r4 card
★★ brain age
★ nintendogs
★ r4
★ brain training
pokemon black
You have in mind a companion for ds and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ds in all years. Click on graph for more.
ds
ds lite
psp