Yesterday's breach of last week's 89.14 low and subsequent selloff to 88.55 signal dollar's erratic decline from 93.78 (Jan '10) to retrace recent upmove fm 84.82 (Nov '10) has resumed and although price has rebounded from there, consolidation with downside bias is still seen for further weakness toward 88.00/10.  
On the upside, break of 90.00/10 would signal aforesaid fall has possibly formed a temporary low and bring retracement to 90.45/50.