The Affymetrix Axiom Exome chip was used to genotype some samples for the phase 1 analysis. There are genotypes for 1248 1000 Genomes samples from the Affy 6 chip available in phase1/analysis_results/supporting/axiom_genotypes from the Axiom Exome ChIP
The 1000 genomes project has multiple sets of high density genotype information on both Illumina and Affymetrix Platforms. Please see the below answers for more info.