Attention! Acer Liquid E is not the same as the Acer Liquid S100!!
They look the same, have the same CPU but they are different.

All the ROM have languages: EN/FR/IT/DE/ES/PT/NL/RU
They are for EMEA (Europe, the Middle East and Africa)
But check the official Acer link or go to: http://www.acer.com/worldwide/support/mobile.html and select 'Netherlands' and click 'Download center'

Acer Liquid A1 (S100) - ROM download 2.1 here
- Android 1.6 (update to 2.1, later models have 2.1 factory installed)
- CPU: 1GHz Scorpion (@768MHz)
- GPU: Adreno 200
- Chipset: Qualcomm QSD8250 'Snapdragon S1'
- RAM: 256MB
- ROM: 512MB

Acer Liquid A1E (E) - ROM download 2.2 here
- Android 2.1 (update to 2.2, later models have 2.2 factory installed)
- CPU: 1GHz Scorpion (@768MHz)
- GPU: Adreno 200
- Chipset: Qualcomm QSD8250 'Snapdragon S1'
- RAM: 512MB
- ROM: 512MB

Acer Liquid A1F (E Ferrari edition) - ROM download 2.2 here
- Android 2.1 (update to 2.2, later models have 2.2 factory installed)
- CPU: 1GHz Scorpion (@768MHz)
- GPU: Adreno 200
- Chipset: Qualcomm QSD8250 'Snapdragon S1'
- RAM: 512MB
- ROM: 512MB

Acer Liquid MT (Metal/S120) - ROM download 2.2 here
- Android 2.1 (update to 2.2, later models have 2.2 factory installed)
- CPU: 800 MHz Scorpion
- GPU: Adreno 205
- Chipset: Qualcomm MSM7230 'Snapdragon S2'
- RAM: 512MB
- ROM: 512MB

See also:
http://global-download.acer.com/GDHo...EMEA_18&LC=nl#
http://en.wikipedia.org/wiki/Acer_Liquid_A1
http://en.wikipedia.org/wiki/Snapdragon_(system_on_chip)